java.lang.NullPointerException: Cannot invoke "net.minecraft.class_327.method_1727(String)" because "<parameter1>" is null

[Lecturn]

I was on a server, opened up the traveler's backpack, then the game crashed. now it's not letting me back in. 

If anyone has a clue to what's happening, here is the full error message: 

---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 2023-11-26 20:25:28
Description: Unexpected error

java.lang.NullPointerException: Cannot invoke "net.minecraft.class_327.method_1727(String)" because "<parameter1>" is null
    at net.minecraft.class_332.redirect$dlp000$stacc$width(class_332.java:4279)
    at net.minecraft.class_332.method_51432(class_332.java:566)
    at net.minecraft.class_332.method_51431(class_332.java:552)
    at com.tiviacz.travelersbackpack.client.screen.OverlayHandledScreen.drawItemStack(OverlayHandledScreen.java:121)
    at com.tiviacz.travelersbackpack.client.screen.OverlayHandledScreen.renderOverlay(OverlayHandledScreen.java:70)
    at net.minecraft.class_329.handler$eck000$travelersbackpack$renderOverlay(class_329.java:6377)
    at net.minecraft.class_329.method_1759(class_329.java:580)
    at net.minecraft.class_329.method_1753(class_329.java:201)
    at net.minecraft.class_757.method_3192(class_757.java:926)
    at net.minecraft.class_310.method_1523(class_310.java:1219)
    at net.minecraft.class_310.method_1514(class_310.java:802)
    at net.minecraft.client.main.Main.main(Main.java:250)
    at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:470)
    at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
    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 net.minecraft.class_332.redirect$dlp000$stacc$width(class_332.java:4279)
    at net.minecraft.class_332.method_51432(class_332.java:566)
    at net.minecraft.class_332.method_51431(class_332.java:552)
    at com.tiviacz.travelersbackpack.client.screen.OverlayHandledScreen.drawItemStack(OverlayHandledScreen.java:121)
    at com.tiviacz.travelersbackpack.client.screen.OverlayHandledScreen.renderOverlay(OverlayHandledScreen.java:70)
    at net.minecraft.class_329.handler$eck000$travelersbackpack$renderOverlay(class_329.java:6377)
    at net.minecraft.class_329.method_1759(class_329.java:580)
    at net.minecraft.class_329.method_1753(class_329.java:201)

-- Affected level --
Details:
    All players: 1 total; [class_746['Calbridor'/70672, l='ClientLevel', x=-18.97, y=63.00, z=-704.79]]
    Chunk stats: 1024, 453
    Level dimension: minecraft:overworld
    Level spawn location: World: (64,153,-96), Section: (at 0,9,0 in 4,9,-6; chunk contains blocks 64,-64,-96 to 79,319,-81), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,-64,-512 to 511,319,-1)
    Level time: 6806694 game time, 30629 day time
    Server brand: fabric
    Server type: Non-integrated multiplayer server
Stacktrace:
    at net.minecraft.class_638.method_8538(class_638.java:458)
    at net.minecraft.class_310.method_1587(class_310.java:2406)
    at net.minecraft.class_310.method_1514(class_310.java:826)
    at net.minecraft.client.main.Main.main(Main.java:250)
    at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:470)
    at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
    at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

-- Last reload --
Details:
    Reload number: 1
    Reload reason: initial
    Finished: Yes
    Packs: vanilla, fabric, Moonlight Mods Dynamic Assets

-- System Details --
Details:
    Minecraft Version: 1.20.1
    Minecraft Version ID: 1.20.1
    Operating System: Mac OS X (aarch64) version 13.6.1
    Java Version: 17.0.8, Microsoft
    Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft
    Memory: 1008129448 bytes (961 MiB) / 2147483648 bytes (2048 MiB) up to 2147483648 bytes (2048 MiB)
    CPUs: 8
    Processor Vendor: Apple Inc.
    Processor Name: Apple M1
    Identifier: Apple Inc. Family 0x1b588bb3 Model 0 Stepping 0
    Microarchitecture: ARM64 SoC: Firestorm + Icestorm
    Frequency (GHz): 3.20
    Number of physical packages: 1
    Number of physical CPUs: 8
    Number of logical CPUs: 8
    Graphics card #0 name: Apple M1
    Graphics card #0 vendor: Apple (0x106b)
    Graphics card #0 VRAM (MB): 0.00
    Graphics card #0 deviceId: unknown
    Graphics card #0 versionInfo: unknown
    Memory slot #0 capacity (MB): 0.00
    Memory slot #0 clockSpeed (GHz): 0.00
    Memory slot #0 type: unknown
    Virtual memory max (MB): 19456.00
    Virtual memory used (MB): 16809.28
    Swap memory total (MB): 11264.00
    Swap memory used (MB): 10096.19
    JVM Flags: 7 total; -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    Fabric Mods: 
        architectury: Architectury 9.1.12
        azurelib: AzureLib 2.0.6
        backslot: BackSlot 1.2.15
            amecsapi: Amecs API 1.5.0+mc1.20-pre1
        bitsandchisels: BitsAndChisels 2.7.3
            stacc: Stacc 1.5.2+boneless2ahhhh
        collective: Collective 6.66
        cosmetic-armor: Cosmetic Armor 1.6.0
        create: Create 0.5.1-d-build.1161+mc1.20.1
            com_electronwill_night-config_core: core 3.6.3
            com_electronwill_night-config_toml: toml 3.6.3
            com_google_code_findbugs_jsr305: jsr305 3.0.2
            flywheel: Flywheel 0.6.9-1
            forgeconfigapiport: Forge Config API Port 8.0.0
            milk: Milk Lib 1.2.60
                dripstone_fluid_lib: Dripstone Fluid Lib 3.0.2
            porting_lib_accessors: Porting Lib Accessors 2.1.1127+1.20
            porting_lib_base: Porting Lib Base 2.1.1127+1.20
                com_github_llamalad7_mixinextras: MixinExtras 0.2.0-beta.8
                porting_lib_attributes: Porting Lib Attributes 2.1.1127+1.20
                porting_lib_common: Porting Lib Common 2.1.1127+1.20
                porting_lib_core: Porting Lib Core 2.1.1127+1.20
                porting_lib_gametest: Porting Lib GameTest 2.1.1127+1.20
                porting_lib_lazy_registration: Porting Lib Lazy Register 2.1.1127+1.20
                porting_lib_utility: Porting Lib Utility 2.1.1127+1.20
            porting_lib_brewing: Porting Lib Brewing 2.1.1127+1.20
            porting_lib_client_events: Porting Lib Client Events 2.1.1127+1.20
            porting_lib_entity: Porting Lib Entity 2.1.1127+1.20
                porting_lib_mixin_extensions: Porting Lib Mixin Extensions 2.1.1127+1.20
            porting_lib_extensions: Porting Lib Extensions 2.1.1127+1.20
            porting_lib_fake_players: Porting Lib Fake Players 2.1.1127+1.20
            porting_lib_models: Porting Lib Models 2.1.1127+1.20
            porting_lib_networking: Porting Lib Networking 2.1.1127+1.20
            porting_lib_obj_loader: Porting Lib Obj Loader 2.1.1127+1.20
                porting_lib_model_loader: Porting Lib Model Loader 2.1.1127+1.20
            porting_lib_tags: Porting Lib Tags 3.0
            porting_lib_tool_actions: Porting Lib Tool Actions 2.1.1127+1.20
            porting_lib_transfer: Porting Lib Transfer 2.1.1127+1.20
            reach-entity-attributes: Reach Entity Attributes 2.4.0
            registrate-fabric: Registrate for Fabric 1.3.62-MC1.20.1
                porting_lib_data: Porting Lib Data 2.1.1090+1.20
                porting_lib_model_generators: Porting Lib Model Generators 2.1.1090+1.20
                    porting_lib_model_materials: Porting Lib Model Materials 2.1.1090+1.20
        croptopia: Croptopia 2.3.2
            com_typesafe_config: config 1.4.1
            io_leangen_geantyref_geantyref: geantyref 1.3.11
            org_spongepowered_configurate-core: configurate-core 4.1.2
            org_spongepowered_configurate-hocon: configurate-hocon 4.1.2
        extraorigins: Extra Origins 1.20-1
        fabric-api: Fabric API 0.88.1+1.20.1
            fabric-api-base: Fabric API Base 0.4.30+7abfd51577
            fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.6.35+4d8536c977
            fabric-biome-api-v1: Fabric Biome API (v1) 13.0.10+b3afc78b77
            fabric-block-api-v1: Fabric Block API (v1) 1.0.10+92a0d36777
            fabric-block-view-api-v2: Fabric BlockView API (v2) 1.0.0+92a0d36777
            fabric-blockrenderlayer-v1: Fabric BlockRenderLayer Registration (v1) 1.1.40+b3afc78b77
            fabric-client-tags-api-v1: Fabric Client Tags 1.1.1+97bb207577
            fabric-command-api-v1: Fabric Command API (v1) 1.2.33+f71b366f77
            fabric-command-api-v2: Fabric Command API (v2) 2.2.12+b3afc78b77
            fabric-commands-v0: Fabric Commands (v0) 0.2.50+df3654b377
            fabric-containers-v0: Fabric Containers (v0) 0.1.63+df3654b377
            fabric-content-registries-v0: Fabric Content Registries (v0) 4.0.9+b3afc78b77
            fabric-convention-tags-v1: Fabric Convention Tags 1.5.4+a1a980da77
            fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.2.18+aeb40ebe77
            fabric-data-generation-api-v1: Fabric Data Generation API (v1) 12.2.2+1e61dba177
            fabric-dimensions-v1: Fabric Dimensions API (v1) 2.1.53+8536527b77
            fabric-entity-events-v1: Fabric Entity Events (v1) 1.5.22+b3afc78b77
            fabric-events-interaction-v0: Fabric Events Interaction (v0) 0.6.1+e91849a877
            fabric-events-lifecycle-v0: Fabric Events Lifecycle (v0) 0.2.62+df3654b377
            fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.0.38+b04edc7a77
            fabric-item-api-v1: Fabric Item API (v1) 2.1.27+b3afc78b77
            fabric-item-group-api-v1: Fabric Item Group API (v1) 4.0.10+23d9108177
            fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.0.36+fb8d95da77
            fabric-keybindings-v0: Fabric Key Bindings (v0) 0.2.34+df3654b377
            fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 2.2.21+b3afc78b77
            fabric-loot-api-v2: Fabric Loot API (v2) 1.1.39+b3afc78b77
            fabric-loot-tables-v1: Fabric Loot Tables (v1) 1.1.43+9e7660c677
            fabric-message-api-v1: Fabric Message API (v1) 5.1.7+3265161977
            fabric-mining-level-api-v1: Fabric Mining Level API (v1) 2.1.49+b3afc78b77
            fabric-model-loading-api-v1: Fabric Model Loading API (v1) 1.0.2+709a987177
            fabric-models-v0: Fabric Models (v0) 0.4.1+9386d8a777
            fabric-networking-api-v1: Fabric Networking API (v1) 1.3.10+eeb8eb3677
            fabric-networking-v0: Fabric Networking (v0) 0.3.50+df3654b377
            fabric-object-builder-api-v1: Fabric Object Builder API (v1) 11.1.1+6beca84877
            fabric-particles-v1: Fabric Particles (v1) 1.1.1+201a23a077
            fabric-recipe-api-v1: Fabric Recipe API (v1) 1.0.20+b3afc78b77
            fabric-registry-sync-v0: Fabric Registry Sync (v0) 2.3.2+4df89eb277
            fabric-renderer-api-v1: Fabric Renderer API (v1) 3.1.3+92a0d36777
            fabric-renderer-indigo: Fabric Renderer - Indigo 1.4.3+6bdb2ed077
            fabric-renderer-registries-v1: Fabric Renderer Registries (v1) 3.2.45+df3654b377
            fabric-rendering-data-attachment-v1: Fabric Rendering Data Attachment (v1) 0.3.36+92a0d36777
            fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 3.0.27+b3afc78b77
            fabric-rendering-v0: Fabric Rendering (v0) 1.1.48+df3654b377
            fabric-rendering-v1: Fabric Rendering (v1) 3.0.7+b3afc78b77
            fabric-resource-conditions-api-v1: Fabric Resource Conditions API (v1) 2.3.5+ea08f9d877
            fabric-resource-loader-v0: Fabric Resource Loader (v0) 0.11.9+132c48c177
            fabric-screen-api-v1: Fabric Screen API (v1) 2.0.7+b3afc78b77
            fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.3.29+b3afc78b77
            fabric-sound-api-v1: Fabric Sound API (v1) 1.0.12+b3afc78b77
            fabric-transfer-api-v1: Fabric Transfer API (v1) 3.3.1+195226a777
            fabric-transitive-access-wideners-v1: Fabric Transitive Access Wideners (v1) 4.3.0+6c31357e77
        fabricloader: Fabric Loader 0.14.24
        fullbrightnesstoggle: Full Brightness Toggle 3.0
        fwaystones: Fabric Waystones 3.1.3+mc1.20
        glass_armor: Glass Armor 1.0.0+1.20.x
        hwg: Happiness is a Warm Gun 1.4.23
        indium: Indium 1.0.21+mc1.20.1
        java: OpenJDK 64-Bit Server VM 17
        jei: Just Enough Items 15.2.0.27
        magistuarmory: Epic Knights Mod 8.3
        mcwfurnitures: Macaw's Furniture 3.2.0b
        minecraft: Minecraft 1.20.1
        moborigins: Mob Origins 1.11.1
        moonlight: Moonlight 1.20-2.8.15
        origins: Origins 1.10.0
            apoli: Apoli 2.9.0
                additionalentityattributes: Additional Entity Attributes 1.3.0+1.20.0
                calio: Calio 1.11.0
                cardinal-components-base: Cardinal Components API (base) 5.2.1
                cardinal-components-entity: Cardinal Components API (entities) 5.2.1
                cloth-config: Cloth Config v11 11.0.99
                    cloth-basic-math: cloth-basic-math 0.6.1
                playerabilitylib: Pal 1.8.0
        owo: oωo 0.11.1+1.20
            blue_endless_jankson: jankson 1.2.2
        pehkui: Pehkui 3.7.8+1.14.4-1.20.1
            kanos_config: Kanos Config 0.4.1+1.14.4-1.19.4
        railways: Create: Steam 'n' Rails 1.5.1+fabric-mc1.20.1
            mm: Manningham Mills 2.3
        smartbrainlib: SmartBrainLib 1.12
        sodium: Sodium 0.4.10+build.27
        supplementaries: Supplementaries 1.20-2.5.28
        terrestria: Terrestria 6.0.10
            biolith: Biolith 1.0.0-alpha.8
            terraform-biome-remapper-api-v1: Terraform Biome Remapper API (v1) 7.0.1
            terraform-config-api-v1: Terraform Config API (v1) 7.0.1
            terraform-dirt-api-v1: Terraform Dirt API (v1) 7.0.1
            terraform-shapes-api-v1: Terraform Shapes API (v1) 7.0.1
            terraform-surfaces-api-v1: Terraform Surfaces API (v1) 7.0.1
            terraform-tree-api-v1: Terraform Tree API (v1) 7.0.1
            terraform-wood-api-v1: Terraform Wood API (v1) 7.0.1
            terrestria-client: Terrestria: Client 6.0.10
            terrestria-common: Terrestria: Common 6.0.10
            terrestria-worldgen: Terrestria: World Generation 6.0.10
        travelersbackpack: Traveler's Backpack 1.20.1-9.1.2
        trinkets: Trinkets 3.7.1
        usefulbackpacks: Useful Backpacks 2.0.1.121
        uteamcore: U Team Core 5.1.3.268
        worldedit: WorldEdit 7.2.15+6463-5ca4dff
        xaerominimap: Xaero's Minimap 23.7.0
        xaeroworldmap: Xaero's World Map 1.34.0
    Flywheel Backend: GL33 Instanced Arrays
    Launched Version: fabric-loader-0.14.24-1.20.1
    Backend library: LWJGL version 3.3.1 SNAPSHOT
    Backend API: Apple M1 GL version 4.1 Metal - 83.1, Apple
    Window size: 1920x960
    GL Caps: Using framebuffer using OpenGL 3.2
    GL debug messages: <disabled>
    Using VBOs: Yes
    Is Modded: Definitely; Client brand changed to 'fabric'
    Type: Client (map_client.txt)
    GPU Warnings: version: Metal
    Graphics mode: fancy
    Resource Packs: vanilla, fabric, Moonlight Mods Dynamic Assets
    Current Language: en_us
    CPU: 8x Apple M1

[TileEntity]

Make a test without travelersbackpack

[Lecturn]

Unfortunately the server I am on requires traveler's backpack, so it wouldn't work if I took the mod out

[TileEntity]

Contact the server owner

Backup and deleting your playerdata file may be a solution 

[Lecturn]

I'll try this, thanks for the suggestion

 

[Lecturn]

sadly, despite everything I'm still facing the same problem. Does anyone have any other suggestions?