at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.599] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.601] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: accessories:main java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.604] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.606] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.610] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.611] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.614] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.615] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.620] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.622] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.624] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.626] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.629] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.631] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.634] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.636] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.640] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.642] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.644] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.646] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.651] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.653] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.655] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.657] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.661] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.663] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.665] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.667] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.671] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.675] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.677] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.679] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.682] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.685] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.688] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.690] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.694] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.695] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.698] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.700] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:custom_time_packet java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.703] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.705] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.708] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.710] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.713] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.715] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.719] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.723] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.726] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.728] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.731] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.735] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.737] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.740] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.743] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.746] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.749] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.753] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.755] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.757] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.760] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.764] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.766] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.769] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.772] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.775] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.779] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.782] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.785] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.788] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.792] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.797] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.800] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.803] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.806] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.808] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.812] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.815] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.818] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.821] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.824] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.827] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.830] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.833] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.836] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.839] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.842] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.845] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.847] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.851] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.853] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.857] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.860] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.864] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.866] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.869] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.873] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.876] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.878] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.881] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.884] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.888] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.891] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.894] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.896] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.900] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.905] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.907] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.910] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.913] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.916] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.920] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.923] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.926] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.929] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.932] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.937] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.941] [pool-23-thread-1/DEBUG] [com.jagrosh.discordipc.IPCClient/]: Sending RichPresence to discord: {"state":"In Overworld","timestamps":{"start":1769120252},"assets":{"large_image":"logo","large_text":"Pack Logo","small_image":"overworld","small_text":"Overworld"},"instance":false} [22Jan2026 23:21:37.942] [pool-23-thread-1/DEBUG] [com.jagrosh.discordipc.entities.pipe.Pipe/]: Sent packet: Pkt:FRAME{"cmd":"SET_ACTIVITY","args":{"pid":21976,"activity":{"state":"In Overworld","timestamps":{"start":1769120252},"assets":{"large_image":"logo","large_text":"Pack Logo","small_image":"overworld","small_text":"Overworld"},"instance":false}},"nonce":"e6157b91-e8ff-441a-9edf-e3d95bfd06fc"} [22Jan2026 23:21:37.939] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.942] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.946] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.949] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.954] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.957] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.959] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.963] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.966] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.970] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.974] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.977] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.980] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.983] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.988] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.991] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.997] [Thread-34/DEBUG] [com.jagrosh.discordipc.entities.pipe.WindowsPipe/]: Received packet: Pkt:FRAME{"cmd":"SET_ACTIVITY","data":{"state":"In Overworld","timestamps":{"start":1769120252000},"assets":{"large_image":"1270356866677080084","large_text":"Pack Logo","small_image":"1018780942304804984","small_text":"Overworld"},"name":"Better MC [NEOFORGE] BMC5 - 1.21","application_id":"1018780634782638160","platform":"desktop","type":0,"metadata":{}},"evt":null,"nonce":"e6157b91-e8ff-441a-9edf-e3d95bfd06fc"} [22Jan2026 23:21:37.994] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:37.997] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.001] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.006] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.009] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.012] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.015] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.019] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.024] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.027] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.031] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.035] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.038] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.059] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.063] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.066] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.070] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.074] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.082] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.086] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.090] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.095] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.099] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.105] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.109] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.113] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.116] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.120] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.126] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.129] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.133] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.137] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.141] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.148] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.153] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.156] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.160] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.163] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.168] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.172] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.175] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.179] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.183] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.188] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.192] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.196] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.200] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.204] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.208] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.213] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.217] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.221] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.225] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.230] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.234] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.238] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.241] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.246] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.253] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.257] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.261] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.264] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.268] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.274] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.278] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.282] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.287] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.293] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.300] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.304] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.309] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.313] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.317] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.326] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.331] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.335] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.339] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.345] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.353] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.357] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.361] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.365] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.369] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.376] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.380] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.384] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.389] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.393] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.408] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.413] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.417] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.421] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.426] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: alexsmobs:kangaroo_inventory_sync java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.lambda$handleClient$0(MessageKangarooInventorySync.java:46) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/alexsmobs@1.22.16/com.github.alexthe666.alexsmobs.network.MessageKangarooInventorySync.handleClient(MessageKangarooInventorySync.java:45) ~[alexsmobs-1.22.16.jar%23554!/:1.22.16] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.435] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.440] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.446] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.450] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.455] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.461] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: sereneseasons:sync_season_cycle java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.468] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.472] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.476] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.481] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.488] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.493] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.496] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.500] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.508] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.512] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.516] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.521] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.527] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.532] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.537] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.542] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.550] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.556] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.561] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.565] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.572] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.576] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.581] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.586] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.593] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.596] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.601] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.605] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.612] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.616] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.623] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.627] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.635] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.638] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.644] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.649] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.658] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.664] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.669] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.674] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.679] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.684] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.691] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.696] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.700] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.705] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.713] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.717] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.723] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.727] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.734] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.740] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.745] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.750] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.758] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.763] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.768] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.772] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.780] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.785] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.790] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.794] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.802] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.807] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.813] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.818] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: accessories:main java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.824] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.830] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.838] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.844] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.851] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.856] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.862] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.867] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.872] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.877] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.885] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.890] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.895] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.900] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.908] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.912] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:custom_time_packet java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.918] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.924] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.928] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.933] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.941] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.946] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.952] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.958] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.966] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.974] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: sereneseasons:sync_season_cycle java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.981] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.987] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.993] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:38.998] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.006] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.011] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: accessories:main java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.017] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.023] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.031] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.036] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.042] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.047] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.058] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.064] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.069] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.075] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.084] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.090] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.095] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.101] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.110] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.116] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.122] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.128] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.134] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.140] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.146] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.153] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.164] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.173] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.179] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.185] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.194] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.199] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.205] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.211] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.217] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.223] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.232] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.238] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.244] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.251] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.259] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.265] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.269] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.275] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.285] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.291] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.297] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.304] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.313] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.320] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.327] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.333] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.345] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.351] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.359] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.365] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.376] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.382] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.390] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.396] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.406] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.412] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.421] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.427] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.437] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.444] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.452] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.459] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.469] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.476] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: accessories:main java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.484] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.490] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.501] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.509] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.515] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.524] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.535] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.543] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.551] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.560] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:custom_time_packet java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.567] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.576] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.585] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.593] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.606] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.614] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.623] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.631] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.646] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.662] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: sereneseasons:sync_season_cycle java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.676] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.686] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.696] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.706] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.721] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.732] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.742] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.751] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.765] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.774] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.783] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.792] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.804] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.812] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.820] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.830] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.842] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.851] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.862] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.870] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.882] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.890] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.897] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.905] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.913] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.921] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.932] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.939] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.947] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.955] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.966] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/twilightforest@4.7.3196/twilightforest.network.MagicMapPacket$1.run(MagicMapPacket.java:39) ~[twilightforest-1.21.1-4.7.3196-universal.jar%23847!/:4.7.3196] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/twilightforest@4.7.3196/twilightforest.network.MagicMapPacket.handle(MagicMapPacket.java:36) ~[twilightforest-1.21.1-4.7.3196-universal.jar%23847!/:4.7.3196] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.974] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: twilightforest:magic_map java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/twilightforest@4.7.3196/twilightforest.network.MagicMapPacket$1.run(MagicMapPacket.java:39) ~[twilightforest-1.21.1-4.7.3196-universal.jar%23847!/:4.7.3196] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/twilightforest@4.7.3196/twilightforest.network.MagicMapPacket.handle(MagicMapPacket.java:36) ~[twilightforest-1.21.1-4.7.3196-universal.jar%23847!/:4.7.3196] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.981] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.989] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:39.996] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.007] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.015] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.023] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.030] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.041] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.049] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.057] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.065] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.077] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.085] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.092] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.099] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.111] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.119] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.128] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.135] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.147] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.156] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.163] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.170] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.180] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.189] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.196] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.204] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.214] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.223] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.229] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.237] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.250] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.258] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.266] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.274] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.286] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.294] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.300] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.309] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.321] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.328] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.335] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.345] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.361] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.369] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.378] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:custom_time_packet java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.388] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.397] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.405] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.412] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.426] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.434] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.442] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.451] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.463] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.474] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: sereneseasons:sync_season_cycle java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.485] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.493] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.501] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.508] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.521] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.529] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.536] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.544] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.552] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.561] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.572] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.580] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.590] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.598] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.609] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.618] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.626] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.634] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.646] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.655] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.663] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.671] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.685] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.693] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: accessories:main java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.701] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.709] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.722] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.729] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.738] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.746] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.759] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.767] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.776] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.785] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.798] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.806] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.815] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.824] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.838] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.848] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.857] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.867] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.882] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.891] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.900] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.908] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.922] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.930] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.940] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.949] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.964] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.974] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.982] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:40.992] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.006] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.015] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.025] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.034] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.047] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.057] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.067] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.075] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.091] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.100] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.108] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.121] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.134] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.143] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.153] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.162] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.171] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.182] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:184) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.191] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.200] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.211] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.221] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.236] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.246] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: accessories:main java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.257] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.266] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.281] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.292] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.303] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.311] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: neoforge:custom_time_packet java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.multiplayer.ClientLevel.setGameTime(long)" because "level" is null at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handlers.ClientPayloadHandler.handle(ClientPayloadHandler.java:158) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.322] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.332] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.343] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.355] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.370] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.380] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: accessories:main java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.391] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.402] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: accessories:main java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.411] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.428] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: accessories:main java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$0(NeoOwoNetworking.java:60) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/owo@0∙12∙15∙5-beta.1+1.21/io.wispforest.owo.network.neoforge.NeoOwoNetworking.lambda$onNetworkRegister$1(NeoOwoNetworking.java:59) ~[owo-lib-neoforge-0∙12∙15∙5-beta.1+1.21.jar%23777!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.438] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.448] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.458] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.474] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.485] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.500] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: sereneseasons:sync_season_cycle java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler$1.getPlayer(GCPayloadFactory.java:67) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:44) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/sereneseasons@10∙1∙0∙3/sereneseasons.network.SyncSeasonCyclePacket.handle(SyncSeasonCyclePacket.java:15) ~[SereneSeasons-neoforge-1.21.1-10∙1∙0∙3.jar%23812!/:10∙1∙0∙3] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.lambda$handle$0(GCPayloadFactory.java:58) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:57) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/glitchcore@2∙1∙0∙0/glitchcore.neoforge.network.GCPayloadFactory$PayloadHandler.handle(GCPayloadFactory.java:52) ~[GlitchCore-neoforge-1.21.1-2∙1∙0∙0.jar%23689!/:2∙1∙0∙0] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.514] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.524] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.533] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.542] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.557] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.567] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.576] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.587] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.615] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.626] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.636] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.645] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.661] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.670] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.683] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.693] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.707] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.718] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.728] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.739] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.755] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.766] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.777] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.789] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.805] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.815] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.827] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.839] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.856] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.867] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.877] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.888] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.904] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.916] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.926] [Render thread/ERROR] [net.minecraft.util.thread.BlockableEventLoop/FATAL]: Error executing task on Client java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:21:41.938] [Render thread/ERROR] [net.neoforged.neoforge.network.registration.NetworkRegistry/]: Failed to process a synchronized task of the payload: eternal_starlight:sync_attachments java.util.concurrent.CompletionException: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315) ~[?:?] at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320) ~[?:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770) ~[?:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:148) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:111) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1155) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/notenoughcrashes@4.4.9+1.21.1/fudge.notenoughcrashes.mixinhandlers.InGameCatcher.handleClientCrash(InGameCatcher.java:36) ~[notenoughcrashes-neoforge-4.4.9+1.21.1.jar%23771!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.modify$hoc000$notenoughcrashes$atTheEndOfFirstCatchBeforePrintingCrashReport(Minecraft.java:37084) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:825) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] Caused by: java.lang.UnsupportedOperationException: Cannot retrieve the client player during the configuration phase. at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.player(ClientPayloadContext.java:61) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$0(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.ClientPayloadContext.enqueueWork(ClientPayloadContext.java:31) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/eternal_starlight@0.6.3+1.21.1+neoforge/cn.leolezury.eternalstarlight.neoforge.network.NeoForgeNetworkHandler$1.lambda$register$1(NeoForgeNetworkHandler.java:23) ~[eternalstarlight-0.6.3+1.21.1+neoforge.jar%23654!/:?] at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.network.handling.MainThreadPayloadHandler.lambda$handle$0(MainThreadPayloadHandler.java:16) ~[neoforge-21.1.218-universal.jar%23537!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:60) ~[client-1.21.1-20240808.144430-srg.jar%23536!/:?] at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?] ... 25 more [22Jan2026 23:22:21.645] [Render thread/DEBUG] [Framework/]: Stopping config watcher [22Jan2026 23:22:21.664] [Render thread/INFO] [fr.rakambda.fallingtree.common.network.PacketUtils/]: Disconnected from server, resetting proxy config values [22Jan2026 23:22:21.666] [Render thread/DEBUG] [SpectreLib/CONFIG]: Unloading server configs [22Jan2026 23:22:21.675] [Render thread/INFO] [ChunkBuilder/]: Stopping worker threads [22Jan2026 23:22:21.676] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException [22Jan2026 23:22:21.677] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:32) [22Jan2026 23:22:21.677] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [22Jan2026 23:22:21.677] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [22Jan2026 23:22:21.677] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [22Jan2026 23:22:21.681] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [22Jan2026 23:22:21.682] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [22Jan2026 23:22:21.682] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [22Jan2026 23:22:21.682] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [22Jan2026 23:22:21.682] [Render thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:698]: at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [22Jan2026 23:22:21.686] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:660]: Caused by: java.lang.reflect.InvocationTargetException [22Jan2026 23:22:21.686] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:660]: at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:118) [22Jan2026 23:22:21.686] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:660]: at java.base/java.lang.reflect.Method.invoke(Method.java:580) [22Jan2026 23:22:21.687] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:660]: at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) [22Jan2026 23:22:21.687] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:660]: at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) [22Jan2026 23:22:21.687] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:660]: at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) [22Jan2026 23:22:21.690] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:660]: at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) [22Jan2026 23:22:21.690] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:660]: at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [22Jan2026 23:22:21.690] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:660]: ... 8 more [22Jan2026 23:22:21.690] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:673]: Caused by: net.minecraft.ReportedException: Encountered exception while building chunk meshes [22Jan2026 23:22:21.691] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:673]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.render.chunk.compile.tasks.ChunkBuilderMeshingTask.fillCrashInfo(ChunkBuilderMeshingTask.java:215) [22Jan2026 23:22:21.691] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:673]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.render.chunk.compile.tasks.ChunkBuilderMeshingTask.execute(ChunkBuilderMeshingTask.java:144) [22Jan2026 23:22:21.694] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:673]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.render.chunk.compile.tasks.ChunkBuilderMeshingTask.execute(ChunkBuilderMeshingTask.java:50) [22Jan2026 23:22:21.695] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:673]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.render.chunk.compile.executor.ChunkJobTyped.execute(ChunkJobTyped.java:45) [22Jan2026 23:22:21.695] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:673]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.render.chunk.compile.executor.ChunkBuilder$WorkerRunnable.run(ChunkBuilder.java:213) [22Jan2026 23:22:21.695] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:673]: at java.base/java.lang.Thread.run(Thread.java:1583) [22Jan2026 23:22:21.695] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.world.level.BlockAndTintGetter.getBlockState(net.minecraft.core.BlockPos)" because "view" is null [22Jan2026 23:22:21.700] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.renderer.BiomeColors.handler$hnd000$betterend$be_getWaterColor(BiomeColors.java:541) [22Jan2026 23:22:21.700] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.renderer.BiomeColors.getAverageWaterColor(BiomeColors.java:26) [22Jan2026 23:22:21.700] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/neoforge@21.1.218/net.neoforged.neoforge.client.ClientNeoForgeMod$1.getTintColor(ClientNeoForgeMod.java:131) [22Jan2026 23:22:21.700] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.neoforge.render.FluidRendererImpl$ForgeFactory$1.getColor(FluidRendererImpl.java:146) [22Jan2026 23:22:21.700] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.neoforge.render.FluidRendererImpl$ForgeFactory$1.getColor(FluidRendererImpl.java:143) [22Jan2026 23:22:21.704] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.model.quad.blender.BlendedColorProvider.getVertexColor(BlendedColorProvider.java:43) [22Jan2026 23:22:21.704] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.model.quad.blender.BlendedColorProvider.getColors(BlendedColorProvider.java:14) [22Jan2026 23:22:21.704] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.render.chunk.compile.pipeline.DefaultFluidRenderer.updateQuad(DefaultFluidRenderer.java:380) [22Jan2026 23:22:21.704] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.render.chunk.compile.pipeline.DefaultFluidRenderer.render(DefaultFluidRenderer.java:349) [22Jan2026 23:22:21.704] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.neoforge.render.FluidRendererImpl$DefaultRenderContext.render(FluidRendererImpl.java:128) [22Jan2026 23:22:21.708] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.neoforge.render.FluidRendererImpl.render(FluidRendererImpl.java:70) [22Jan2026 23:22:21.708] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: at TRANSFORMER/sodium@0.6.13+mc1.21.1/net.caffeinemc.mods.sodium.client.render.chunk.compile.tasks.ChunkBuilderMeshingTask.execute(ChunkBuilderMeshingTask.java:118) [22Jan2026 23:22:21.708] [Render thread/INFO] [STDERR/]: [java.lang.Throwable:lockedPrintStackTrace:696]: ... 4 more [22Jan2026 23:22:25.159] [Worker-ResourceReload-9/DEBUG] [ModernFix/]: Worker-ResourceReload-9 shutdown