---- Minecraft Network Protocol Error Report ---- // It's the tubes, they're clogged! Time: 2025-11-15 22:44:34 Description: Packet handling error java.lang.NullPointerException: Cannot invoke "com.tiviacz.travelersbackpack.inventory.BackpackWrapper.tanksVisible()" because "this.wrapper" is null at knot//com.tiviacz.travelersbackpack.inventory.menu.BackpackBaseMenu.addSlots(BackpackBaseMenu.java:61) at knot//com.tiviacz.travelersbackpack.inventory.menu.BackpackBaseMenu.(BackpackBaseMenu.java:56) at knot//com.tiviacz.travelersbackpack.inventory.menu.BackpackItemMenu.(BackpackItemMenu.java:24) at knot//com.tiviacz.travelersbackpack.inventory.menu.BackpackItemMenu.(BackpackItemMenu.java:20) at knot//net.fabricmc.fabric.api.screenhandler.v1.ExtendedScreenHandlerType.create(ExtendedScreenHandlerType.java:109) at knot//net.fabricmc.fabric.impl.screenhandler.client.ClientNetworking.openScreen(ClientNetworking.java:72) at knot//net.fabricmc.fabric.impl.screenhandler.client.ClientNetworking.lambda$onInitializeClient$0(ClientNetworking.java:43) at knot//net.fabricmc.fabric.impl.networking.client.ClientPlayNetworkAddon.receive(ClientPlayNetworkAddon.java:77) at knot//net.fabricmc.fabric.impl.networking.client.ClientPlayNetworkAddon.receive(ClientPlayNetworkAddon.java:39) at knot//net.fabricmc.fabric.impl.networking.AbstractChanneledNetworkAddon.handle(AbstractChanneledNetworkAddon.java:102) at knot//net.minecraft.class_8673.handler$bmk000$fabric-networking-api-v1$onCustomPayload(class_8673.java:2050) at knot//net.minecraft.class_8673.method_52780(class_8673.java) at knot//net.minecraft.class_2658.method_53024(class_2658.java:49) at knot//net.minecraft.class_2658.method_65081(class_2658.java:19) at knot//net.minecraft.class_11980$class_11981.method_74450(class_11980.java:55) at knot//net.minecraft.class_11980.method_74449(class_11980.java:38) at knot//net.minecraft.class_310.method_1523(class_310.java:1338) at knot//net.minecraft.class_310.method_1514(class_310.java:969) at net.minecraft.client.main.Main.main(Main.java:250) at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:506) at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72) at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Render thread Stacktrace: at knot//com.tiviacz.travelersbackpack.inventory.menu.BackpackBaseMenu.addSlots(BackpackBaseMenu.java:61) at knot//com.tiviacz.travelersbackpack.inventory.menu.BackpackBaseMenu.(BackpackBaseMenu.java:56) at knot//com.tiviacz.travelersbackpack.inventory.menu.BackpackItemMenu.(BackpackItemMenu.java:24) at knot//com.tiviacz.travelersbackpack.inventory.menu.BackpackItemMenu.(BackpackItemMenu.java:20) at knot//net.fabricmc.fabric.api.screenhandler.v1.ExtendedScreenHandlerType.create(ExtendedScreenHandlerType.java:109) at knot//net.fabricmc.fabric.impl.screenhandler.client.ClientNetworking.openScreen(ClientNetworking.java:72) at knot//net.fabricmc.fabric.impl.screenhandler.client.ClientNetworking.lambda$onInitializeClient$0(ClientNetworking.java:43) at knot//net.fabricmc.fabric.impl.networking.client.ClientPlayNetworkAddon.receive(ClientPlayNetworkAddon.java:77) at knot//net.fabricmc.fabric.impl.networking.client.ClientPlayNetworkAddon.receive(ClientPlayNetworkAddon.java:39) at knot//net.fabricmc.fabric.impl.networking.AbstractChanneledNetworkAddon.handle(AbstractChanneledNetworkAddon.java:102) at knot//net.minecraft.class_8673.handler$bmk000$fabric-networking-api-v1$onCustomPayload(class_8673.java:2050) -- Incoming Packet -- Details: Type: clientbound/minecraft:custom_payload Is Terminal: false Is Skippable: false Stacktrace: at knot//net.minecraft.class_2600.method_59803(class_2600.java:42) at knot//net.minecraft.class_8673.method_60882(class_8673.java:149) at knot//net.minecraft.class_8673.method_59807(class_8673.java:128) at knot//net.minecraft.class_11980$class_11981.method_74450(class_11980.java:60) at knot//net.minecraft.class_11980.method_74449(class_11980.java:38) at knot//net.minecraft.class_310.method_1523(class_310.java:1338) at knot//net.minecraft.class_310.method_1514(class_310.java:969) at net.minecraft.client.main.Main.main(Main.java:250) at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:506) at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72) at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) -- Connection -- Details: Protocol: play Flow: CLIENTBOUND Is Local: true Server type: Server brand: fabric -- Dynamic Lighting -- Details: Mode: fancy Dynamic Light Sources: 9 Spatial Hash Occupancy: 9 / 1024 -- System Details -- Details: Minecraft Version: 1.21.10 Minecraft Version ID: 1.21.10 Operating System: Windows 11 (amd64) version 10.0 Java Version: 21.0.6, Eclipse Adoptium Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Eclipse Adoptium Memory: 916910296 bytes (874 MiB) / 3221225472 bytes (3072 MiB) up to 6442450944 bytes (6144 MiB) CPUs: 16 Processor Vendor: AuthenticAMD Processor Name: AMD Ryzen 7 5700G with Radeon Graphics Identifier: AuthenticAMD Family 25 Model 80 Stepping 0 Microarchitecture: Zen 3 Frequency (GHz): 3.79 Number of physical packages: 1 Number of physical CPUs: 8 Number of logical CPUs: 16 Graphics card #0 name: AMD Radeon(TM) Graphics Graphics card #0 vendor: Advanced Micro Devices, Inc. Graphics card #0 VRAM (MiB): 512.00 Graphics card #0 deviceId: VideoController1 Graphics card #0 versionInfo: 31.0.21923.11000 Memory slot #0 capacity (MiB): 8192.00 Memory slot #0 clockSpeed (GHz): 3.20 Memory slot #0 type: DDR4 Virtual memory max (MiB): 21375.39 Virtual memory used (MiB): 17250.46 Swap memory total (MiB): 13824.00 Swap memory used (MiB): 1946.13 Space in storage for jna.tmpdir (MiB): available: 197766.09, total: 487616.63 Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 197766.09, total: 487616.63 Space in storage for io.netty.native.workdir (MiB): available: 197766.09, total: 487616.63 Space in storage for java.io.tmpdir (MiB): available: 197766.09, total: 487616.63 Space in storage for workdir (MiB): available: 197766.09, total: 487616.63 JVM Flags: 9 total; -Xmx6G -Xms3G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump Debug Flags: 0 total; Fabric Mods: accessories: Accessories 1.4.0-beta+1.21.10 io_wispforest_endec: endec 0.1.11 io_wispforest_endec_gson: gson 0.1.6 io_wispforest_endec_jankson: jankson 0.1.6 io_wispforest_endec_netty: netty 0.1.5 appleskin: AppleSkin 3.0.7+mc1.21.9 architectury: Architectury 18.0.6 balm: Balm 21.10.6 kuma_api: KumaAPI 21.10.4 betteradvancements: Better Advancements **.**.**.** betterbiomeblend: Better Biome ReBlend 1.5.2 bettergrass: BetterGrassify 1.8.2+fabric.1.21.10 betterstats: Better Statistics Screen 4.0.0+fabric-1.21.10 boatiview: Boat Item View 0.0.7 cardinal-components: Cardinal Components API 7.2.0 cardinal-components-base: Cardinal Components API (base) 7.2.0 cardinal-components-block: Cardinal Components API (blocks) 7.2.0 cardinal-components-chunk: Cardinal Components API (chunks) 7.2.0 cardinal-components-entity: Cardinal Components API (entities) 7.2.0 cardinal-components-item: Cardinal Components API (items) 7.2.0 cardinal-components-level: Cardinal Components API (world saves) 7.2.0 cardinal-components-scoreboard: Cardinal Components API (scoreboard) 7.2.0 cardinal-components-world: Cardinal Components API (worlds) 7.2.0 clickvillagers: ClickVillagers fabric-1.4.2-hotfix+1.21.10 de_clickism_configured-core: configured-core 0.2.4 de_clickism_configured-json: configured-json 0.2.4 de_clickism_configured-yaml: configured-yaml 0.2.4 de_clickism_modrinth-update-checker: modrinth-update-checker 1.0 sgui: sgui 1.11.0+1.21.9 cloth-config: Cloth Config v20 20.0.149 cloth-basic-math: cloth-basic-math 0.6.1 clumps: Clumps **.**.**.** collective: Collective 8.13 connectiblechains: Connectible Chains 2.5.5+1.21.10 continuity: Continuity 3.0.1-beta.2+1.21.10 dark-loading-screen: Dark Loading Screen 1.6.17 dynamic_fps: Dynamic FPS 3.10.1 net_lostluma_battery: battery 1.3.0 easyanvils: Easy Anvils 21.10.0 elytratrims: Elytra Trims 4.4.0 enchdesc: EnchantmentDescriptions 21.10.1 entity_model_features: Entity Model Features 3.0.5 entity_texture_features: Entity Texture Features 7.0.4 org_apache_httpcomponents_httpmime: httpmime 4.5.10 fabric-api: Fabric API 0.138.3+1.21.10 fabric-api-base: Fabric API Base 1.0.0+14b92d896f fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.6.106+d17682156f fabric-biome-api-v1: Fabric Biome API (v1) 16.1.0+c2417d4f6f fabric-block-api-v1: Fabric Block API (v1) 1.1.5+d17682156f fabric-block-view-api-v2: Fabric BlockView API (v2) 1.0.34+e4fd1b926f fabric-command-api-v2: Fabric Command API (v2) 2.4.0+c0ab2d5d6f fabric-content-registries-v0: Fabric Content Registries (v0) 10.2.6+b6a242646f fabric-convention-tags-v1: Fabric Convention Tags 2.1.49+7f945d5b6f fabric-convention-tags-v2: Fabric Convention Tags (v2) 2.17.0+ff7bc77d6f fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.3.18+33df5e6e6f fabric-data-attachment-api-v1: Fabric Data Attachment API (v1) 1.8.33+cd3b9e596f fabric-data-generation-api-v1: Fabric Data Generation API (v1) 23.2.27+d8b85ef16f fabric-dimensions-v1: Fabric Dimensions API (v1) 4.0.22+38b9cc196f fabric-entity-events-v1: Fabric Entity Events (v1) 2.1.13+fde3702c6f fabric-events-interaction-v0: Fabric Events Interaction (v0) 4.0.36+5ba217126f fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.1.1+e47eaae56f fabric-item-api-v1: Fabric Item API (v1) 11.5.11+9bce411b6f fabric-item-group-api-v1: Fabric Item Group API (v1) 4.2.27+86b3ae576f fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.1.1+b3ba9c486f fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 2.6.9+33df5e6e6f fabric-loot-api-v2: Fabric Loot API (v2) 3.0.67+3f89f5a56f fabric-loot-api-v3: Fabric Loot API (v3) 2.0.14+d17682156f fabric-message-api-v1: Fabric Message API (v1) 6.1.7+3154c1c86f fabric-model-loading-api-v1: Fabric Model Loading API (v1) 6.0.4+3ffd6ef06f fabric-networking-api-v1: Fabric Networking API (v1) 5.1.0+b095d8db6f fabric-object-builder-api-v1: Fabric Object Builder API (v1) 21.1.28+9bce411b6f fabric-particles-v1: Fabric Particles (v1) 4.2.3+a0ee59a46f fabric-recipe-api-v1: Fabric Recipe API (v1) 8.2.0+39709ef06f fabric-registry-sync-v0: Fabric Registry Sync (v0) 6.1.42+679c8c5c6f fabric-renderer-api-v1: Fabric Renderer API (v1) 7.2.2+3706cdf36f fabric-renderer-indigo: Fabric Renderer - Indigo 4.1.3+d7df91576f fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 3.1.38+86b3ae576f fabric-rendering-v1: Fabric Rendering (v1) 16.2.0+bee81f016f fabric-resource-conditions-api-v1: Fabric Resource Conditions API (v1) 5.0.28+33df5e6e6f fabric-resource-loader-v0: Fabric Resource Loader (v0) 3.3.1+d4d4122a6f fabric-resource-loader-v1: Fabric Resource Loader (v1) 1.0.4+14959b836f fabric-screen-api-v1: Fabric Screen API (v1) 3.1.0+9c82a7986f fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.3.151+d17682156f fabric-serialization-api-v1: Fabric Serialization API (v1) 1.0.0+d857c9766f fabric-sound-api-v1: Fabric Sound API (v1) 1.0.45+328a75ba6f fabric-tag-api-v1: Fabric Tag API (v1) 1.2.13+2fa446b26f fabric-transfer-api-v1: Fabric Transfer API (v1) 6.0.15+79ec2c126f fabric-transitive-access-wideners-v1: Fabric Transitive Access Wideners (v1) 6.5.3+41eb43436f fabric-language-kotlin: Fabric Language Kotlin 1.13.7+kotlin.2.2.21 org_jetbrains_kotlin_kotlin-reflect: kotlin-reflect 2.2.21 org_jetbrains_kotlin_kotlin-stdlib: kotlin-stdlib 2.2.21 org_jetbrains_kotlin_kotlin-stdlib-jdk7: kotlin-stdlib-jdk7 2.2.21 org_jetbrains_kotlin_kotlin-stdlib-jdk8: kotlin-stdlib-jdk8 2.2.21 org_jetbrains_kotlinx_atomicfu-jvm: atomicfu-jvm 0.29.0 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 0.7.1 org_jetbrains_kotlinx_kotlinx-io-bytestring-jvm: kotlinx-io-bytestring-jvm 0.8.0 org_jetbrains_kotlinx_kotlinx-io-core-jvm: kotlinx-io-core-jvm 0.8.0 org_jetbrains_kotlinx_kotlinx-serialization-cbor-jvm: kotlinx-serialization-cbor-jvm 1.9.0 org_jetbrains_kotlinx_kotlinx-serialization-core-jvm: kotlinx-serialization-core-jvm 1.9.0 org_jetbrains_kotlinx_kotlinx-serialization-json-jvm: kotlinx-serialization-json-jvm 1.9.0 fabricloader: Fabric Loader 0.17.3 mixinextras: MixinExtras 0.5.0 fallingtree: FallingTree **.**.**.** ferritecore: FerriteCore 8.0.0 flashback: Flashback 0.38.2 com_moulberry_mixinconstraints: mixinconstraints 1.0.8 lattice: Lattice 1.2.18 forgeconfigapiport: Forge Config API Port 21.10.0 com_electronwill_night-config_core: core 3.8.3 com_electronwill_night-config_toml: toml 3.8.3 healthbars: Health Bars 21.10.0 hideexperimentalwarning: Hide Experimental Warning 1.2 immediatelyfast: ImmediatelyFast 1.13.2+1.21.10 net_lenni0451_reflect: Reflect 1.3.4 immersiveui: ImmersiveUI 0.3.5 inventoryprofilesnext: Inventory Profiles Next 2.2.0 jade: Jade 20.0.5+fabric jamlib: JamLib 1.3.5+1.21.10 blue_endless_jankson: jankson 1.2.3 java: OpenJDK 64-Bit Server VM 21 jei: Just Enough Items **.**.**.** journeymap: Journeymap 1.21.10-6.0.0-beta.52 ar_com_hjg_pngj: pngj 2.1.0 commonnetworking: Common Network 1.0.21-1.21.10 journeymap-api-fabric: JourneyMap API 2.0.0-1.21.10-SNAPSHOT lambdynlights: LambDynamicLights 4.8.5+1.21.10 lambdynlights_runtime: LambDynamicLights (Runtime) 4.8.5+1.21.10 lambdynlights_api: LambDynamicLights (API) 4.8.5+1.21.10 yumi_commons_collections: Yumi Commons: Collections 1.0.0 yumi_commons_core: Yumi Commons: Core 1.0.0 yumi_commons_event: Yumi Commons: Event 1.0.0 pride: Pride Lib 1.5.1+1.21.9 spruceui: SpruceUI 9.0.0+1.21.9 yumi_mc_core: Yumi Minecraft Libraries: Foundation 1.0.0-alpha.17+1.21.9 libipn: libIPN 6.6.0 malilib: MaLiLib 0.26.3 minecraft: Minecraft 1.21.10 minihud: MiniHUD 0.37.2 modelfix: Model Gap Fix 1.21.10-1.12 modmenu: Mod Menu 16.0.0-rc.1 placeholder-api: Placeholder API 2.8.0+1.21.9 mousetweaks: Mouse Tweaks 2.29 mr_mounts_staystill: Mounts stay still 1.2.4 netherportalfix: NetherPortalFix 21.10.1 no-resource-pack-warnings: No Resource Pack Warnings 1.4.0 noanimaltemptdelay: No Animal Tempt Delay 1.2 oldpiglinbarter: OldPiglinBarter 1.0.0 oreharvester: Ore Harvester 1.5 owo: oωo 0.12.24+1.21.9 prickle: PrickleMC 21.10.2 puzzleslib: Puzzles Lib 21.10.5 reeses-sodium-options: Reese's Sodium Options 1.8.5+mc1.21.9 rightclickharvest: Right Click Harvest 4.6.0+1.21.10 shatterlib: ShatterLib **.**.**.** org_yaml_snakeyaml: snakeyaml 2.2 simple-armor-hud: Simple armor hud 1.21.10-1.6.0 sit: Sit 29 skinlayers3d: 3d-Skin-Layers 1.9.2 transition: TRansition 1.0.6 trender: TRender 1.0.7 sodium: Sodium 0.7.2+mc1.21.10 sodium-extra: Sodium Extra 0.7.0+mc1.21.9 stringduperfix: String Duper Fix 1.6 tcdcommons: TCDCommons API 4.0.1+fabric-1.21.10 tool_trims: Tool Trims Packaged 2.3.4 toros-auto-mine: Toro's Auto Mine 1.0 trade_cycling: Trade Cycling 1.21.10-1.0.19 tradeuses: Trade Uses 1.2.5 travelersbackpack: Traveler's Backpack 10.10.0 tweakeroo: Tweakeroo 0.26.2 ungrateful-villagers: Ungrateful Villagers 1.0.1 visibletraders: Visible Traders **.**.**.** visuality: Visuality 0.7.11+1.21.9 zoomify: Zoomify 2.14.6+1.21.9 com_akuleshov7_ktoml-core-jvm: ktoml-core-jvm 0.5.2 yet_another_config_lib_v3: YetAnotherConfigLib 3.8.0+1.21.9-fabric com_twelvemonkeys_common_common-image: common-image 3.12.0 com_twelvemonkeys_common_common-io: common-io 3.12.0 com_twelvemonkeys_common_common-lang: common-lang 3.12.0 com_twelvemonkeys_imageio_imageio-core: imageio-core 3.12.0 com_twelvemonkeys_imageio_imageio-metadata: imageio-metadata 3.12.0 com_twelvemonkeys_imageio_imageio-webp: imageio-webp 3.12.0 org_quiltmc_parsers_gson: gson 0.2.1 org_quiltmc_parsers_json: json 0.2.1 Yumi MC Core: 1.0.0-alpha.17+1.21.9