---- Minecraft Crash Report ---- // Oops. Time: 2025-07-14 16:44:19 Description: Exception in server tick loop java.lang.IllegalStateException: No key z in MapLike[{}]; No key y in MapLike[{}]; No key x in MapLike[{}]; No key WorldRegistryKey in MapLike[{}] at knot//com.mojang.serialization.DataResult$Error.getOrThrow(DataResult.java:287) at knot//com.mojang.serialization.DataResult.getOrThrow(DataResult.java:81) at knot//com.fibermc.essentialcommands.WorldData.fromNbt(WorldData.java:44) at knot//com.fibermc.essentialcommands.WorldDataManager.onServerStart(WorldDataManager.java:64) at knot//com.fibermc.essentialcommands.WorldDataManager.createForServer(WorldDataManager.java:44) at knot//com.fibermc.essentialcommands.ManagerLocator.onServerStart(ManagerLocator.java:45) at knot//com.fibermc.essentialcommands.EssentialCommands.lambda$onInitialize$1(EssentialCommands.java:66) at knot//net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.lambda$static$0(ServerLifecycleEvents.java:38) at knot//net.minecraft.server.MinecraftServer.handler$zgc000$fabric-lifecycle-events-v1$beforeSetupServer(MinecraftServer.java:2697) at knot//net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:672) at knot//net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:291) at java.base/java.lang.Thread.run(Thread.java:1583) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 1.21.7 Minecraft Version ID: 1.21.7 Operating System: Windows 11 (amd64) version 10.0 Java Version: 21.0.6, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode, sharing), Oracle Corporation Memory: 106227736 bytes (101 MiB) / 591396864 bytes (564 MiB) up to 4294967296 bytes (4096 MiB) CPUs: 8 Processor Vendor: GenuineIntel Processor Name: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz Identifier: Intel64 Family 6 Model 94 Stepping 3 Microarchitecture: Skylake (Client) Frequency (GHz): 3.41 Number of physical packages: 1 Number of physical CPUs: 4 Number of logical CPUs: 8 Graphics card #0 name: NVIDIA GeForce GTX 1070 Graphics card #0 vendor: NVIDIA Graphics card #0 VRAM (MiB): 8192.00 Graphics card #0 deviceId: VideoController1 Graphics card #0 versionInfo: 32.0.15.7652 Memory slot #0 capacity (MiB): 8192.00 Memory slot #0 clockSpeed (GHz): 2.13 Memory slot #0 type: DDR4 Memory slot #1 capacity (MiB): 8192.00 Memory slot #1 clockSpeed (GHz): 2.13 Memory slot #1 type: DDR4 Virtual memory max (MiB): 28949.98 Virtual memory used (MiB): 24326.38 Swap memory total (MiB): 12603.34 Swap memory used (MiB): 1788.10 Space in storage for jna.tmpdir (MiB): available: 189293.75, total: 953868.00 Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 189293.75, total: 953868.00 Space in storage for io.netty.native.workdir (MiB): available: 189293.75, total: 953868.00 Space in storage for java.io.tmpdir (MiB): available: 73042.19, total: 237117.00 Space in storage for workdir (MiB): available: 189293.75, total: 953868.00 JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4096M Fabric Mods: essential_commands: Essential Commands 0.38.0-mc1.21.7 ec-core: Essential Commands Core 1.3.0-mc1.21.7 fabric-permissions-api-v0: fabric-permissions-api 0.3.3 org_yaml_snakeyaml: snakeyaml 2.0 placeholder-api: Placeholder API 2.6.2+1.21.5 playerabilitylib: Pal 1.14.0 fabric-api: Fabric API 0.129.0+1.21.7 fabric-api-base: Fabric API Base 0.4.64+9ec45cd86c fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.6.100+946bf4c36c fabric-biome-api-v1: Fabric Biome API (v1) 16.0.11+946bf4c36c fabric-block-api-v1: Fabric Block API (v1) 1.1.3+946bf4c36c fabric-block-view-api-v2: Fabric BlockView API (v2) 1.0.31+946bf4c36c fabric-command-api-v2: Fabric Command API (v2) 2.2.53+946bf4c36c fabric-content-registries-v0: Fabric Content Registries (v0) 10.0.18+946bf4c36c fabric-convention-tags-v1: Fabric Convention Tags 2.1.40+7f945d5b6c fabric-convention-tags-v2: Fabric Convention Tags (v2) 2.15.5+eb5df52f6c fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.3.15+946bf4c36c fabric-data-attachment-api-v1: Fabric Data Attachment API (v1) 1.8.10+946bf4c36c fabric-data-generation-api-v1: Fabric Data Generation API (v1) 23.2.4+55e55d296c fabric-dimensions-v1: Fabric Dimensions API (v1) 4.0.19+946bf4c36c fabric-entity-events-v1: Fabric Entity Events (v1) 2.1.1+c9e472736c fabric-events-interaction-v0: Fabric Events Interaction (v0) 4.0.23+946bf4c36c fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.0.73+c64c9c5b6c fabric-item-api-v1: Fabric Item API (v1) 11.4.3+946bf4c36c fabric-item-group-api-v1: Fabric Item Group API (v1) 4.2.13+946bf4c36c fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.0.65+946bf4c36c fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 2.6.3+db4dfd856c fabric-loot-api-v2: Fabric Loot API (v2) 3.0.55+3f89f5a56c fabric-loot-api-v3: Fabric Loot API (v3) 2.0.2+946bf4c36c fabric-message-api-v1: Fabric Message API (v1) 6.1.1+946bf4c36c fabric-model-loading-api-v1: Fabric Model Loading API (v1) 5.2.5+946bf4c36c fabric-networking-api-v1: Fabric Networking API (v1) 5.0.1+946bf4c36c fabric-object-builder-api-v1: Fabric Object Builder API (v1) 21.1.7+946bf4c36c fabric-particles-v1: Fabric Particles (v1) 4.1.7+946bf4c36c fabric-recipe-api-v1: Fabric Recipe API (v1) 8.1.14+946bf4c36c fabric-registry-sync-v0: Fabric Registry Sync (v0) 6.1.27+946bf4c36c fabric-renderer-api-v1: Fabric Renderer API (v1) 7.0.2+946bf4c36c fabric-renderer-indigo: Fabric Renderer - Indigo 4.0.2+946bf4c36c fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 3.1.30+fa6cb72b6c fabric-rendering-v1: Fabric Rendering (v1) 12.4.0+e8d43c766c fabric-resource-conditions-api-v1: Fabric Resource Conditions API (v1) 5.0.24+946bf4c36c fabric-resource-loader-v0: Fabric Resource Loader (v0) 3.1.11+946bf4c36c fabric-screen-api-v1: Fabric Screen API (v1) 2.1.0+277ecf7d6c fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.3.136+946bf4c36c fabric-sound-api-v1: Fabric Sound API (v1) 1.0.42+946bf4c36c fabric-tag-api-v1: Fabric Tag API (v1) 1.2.1+946bf4c36c fabric-transfer-api-v1: Fabric Transfer API (v1) 6.0.5+946bf4c36c fabric-transitive-access-wideners-v1: Fabric Transitive Access Wideners (v1) 6.4.1+ac3e15d16c fabric-language-kotlin: Fabric Language Kotlin 1.13.4+kotlin.2.2.0 org_jetbrains_kotlin_kotlin-reflect: kotlin-reflect 2.2.0 org_jetbrains_kotlin_kotlin-stdlib: kotlin-stdlib 2.2.0 org_jetbrains_kotlin_kotlin-stdlib-jdk7: kotlin-stdlib-jdk7 2.2.0 org_jetbrains_kotlin_kotlin-stdlib-jdk8: kotlin-stdlib-jdk8 2.2.0 org_jetbrains_kotlinx_atomicfu-jvm: atomicfu-jvm 0.28.0 org_jetbrains_kotlinx_kotlinx-coroutines-core-jvm: kotlinx-coroutines-core-jvm 1.10.2 org_jetbrains_kotlinx_kotlinx-coroutines-jdk8: kotlinx-coroutines-jdk8 1.10.2 org_jetbrains_kotlinx_kotlinx-datetime-jvm: kotlinx-datetime-jvm 0.6.2 org_jetbrains_kotlinx_kotlinx-io-bytestring-jvm: kotlinx-io-bytestring-jvm 0.7.0 org_jetbrains_kotlinx_kotlinx-io-core-jvm: kotlinx-io-core-jvm 0.7.0 org_jetbrains_kotlinx_kotlinx-serialization-cbor-jvm: kotlinx-serialization-cbor-jvm 1.8.1 org_jetbrains_kotlinx_kotlinx-serialization-core-jvm: kotlinx-serialization-core-jvm 1.8.1 org_jetbrains_kotlinx_kotlinx-serialization-json-jvm: kotlinx-serialization-json-jvm 1.8.1 fabricloader: Fabric Loader 0.16.13 mixinextras: MixinExtras 0.4.1 java: Java HotSpot(TM) 64-Bit Server VM 21 minecraft: Minecraft 1.21.7 Server Running: true Player Count: 0 / 8; [] Active Data Packs: vanilla, fabric, fabric-convention-tags-v2 Available Data Packs: fabric, fabric-convention-tags-v2, minecart_improvements, redstone_experiments, trade_rebalance, vanilla Enabled Feature Flags: minecraft:vanilla World Generation: Stable World Seed: -4529826978214845491 Suppressed Exceptions: ~~NONE~~ Type: Integrated Server (map_client.txt) Is Modded: Definitely; Client brand changed to 'fabric'; Server brand changed to 'fabric' Launched Version: 1.21.7