0. ALWAYS PROVIDE INFORMATION ABOUT MODLOADER (Fabric / Forge) AND MOD VERSION (For Example 1.19.2-8.2.10)
   Forge 1.19.4
   Mod version 1.19.4-8.4.16

1. Describe the bug
   Game give the error when starting the game, unknown cause

2. Write steps to reproduce the bug
   Have travelers backpack in the mods folder, launch game

3. What is expected behaviour
   Game should start normally, without the error

4. Screenshots (If applicable)
   

Only started when I added the enchantment infuser mod, and I get the same error each time. But even if I remopve the enchantment infuser and start the game, it persists. I got it to work by removing TB from my folder and reloading the world, and then putting TB back in. The problem is I lost the backpack and all the items within it, and when I exited minecraft and tried to load again later, the issue came back. i really dont wanna have to do this each time. i have also tried using different versions of the mod, to no avail

can you show the crash?

---- Minecraft Crash Report ----
// My bad.

Time: 2023-10-14 16:54:40
Description: Mod loading error has occurred

java.lang.Exception: Mod Loading has failed
at net.minecraftforge.logging.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:58) ~[forge-1.19.4-45.2.0-universal.jar%23217!/:?] {re:classloading}
at net.minecraftforge.client.loading.ClientModLoader.completeModLoading(ClientModLoader.java:165) ~[forge-1.19.4-45.2.0-universal.jar%23217!/:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.lambda$new$2(Minecraft.java:577) ~[client-1.19.4-20230314.122934-srg.jar%23212!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.Util.m_137521_(Util.java:582) ~[client-1.19.4-20230314.122934-srg.jar%23212!/:?] {re:classloading,xf:OptiFine:default}
at net.minecraft.client.Minecraft.lambda$new$3(Minecraft.java:571) ~[client-1.19.4-20230314.122934-srg.jar%23212!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.screens.LoadingOverlay.m_86412_(LoadingOverlay.java:196) ~[client-1.19.4-20230314.122934-srg.jar%23212!/:?] {re:classloading,xf:OptiFine:default}
at net.minecraft.client.renderer.GameRenderer.m_109093_(GameRenderer.java:1363) ~[client-1.19.4-20230314.122934-srg.jar%23212!/:?] {re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
at net.minecraft.client.Minecraft.m_91383_(Minecraft.java:1148) ~[client-1.19.4-20230314.122934-srg.jar%23212!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.m_91374_(Minecraft.java:719) ~[client-1.19.4-20230314.122934-srg.jar%23212!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:205) ~[1.19.4-forge-45.2.0.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$launchService$0(CommonClientLaunchHandler.java:27) ~[fmlloader-1.19.4-45.2.0.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.8.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.8.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.8.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) ~[modlauncher-10.0.8.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) ~[modlauncher-10.0.8.jar:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.8.jar:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.8.jar:?] {}
at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] {}

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Render thread
Stacktrace:
at java.util.HashMap.computeIfAbsent(HashMap.java:1221) ~[?:?] {re:mixin}
-- MOD travelersbackpack --
Details:
Mod File: /C:/Users/robro/AppData/Roaming/.minecraft/mods/TravelersBackpack-1.19.4-8.4.17.jar
Failure message: Traveler's Backpack (travelersbackpack) encountered an error during the sided_setup event phase
java.util.ConcurrentModificationException: null
Mod Version: 8.4.17
Mod Issue URL: NOT PROVIDED
Exception message: java.util.ConcurrentModificationException
Stacktrace:
at java.util.HashMap.computeIfAbsent(HashMap.java:1221) ~[?:?] {re:mixin}
at net.minecraft.client.renderer.item.ItemProperties.register(ItemProperties.java:65) ~[client-1.19.4-20230314.122934-srg.jar%23212!/:?] {re:classloading,pl:runtimedistcleaner:A}
at com.tiviacz.travelersbackpack.handlers.ModClientEventHandler.registerItemModelProperty(ModClientEventHandler.java:30) ~[TravelersBackpack-1.19.4-8.4.17.jar%23206!/:1.19.4-8.4.17] {re:classloading}
at com.tiviacz.travelersbackpack.TravelersBackpack.doClientStuff(TravelersBackpack.java:94) ~[TravelersBackpack-1.19.4-8.4.17.jar%23206!/:1.19.4-8.4.17] {re:classloading}
at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:260) ~[eventbus-6.0.3.jar%2385!/:?] {}
at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:252) ~[eventbus-6.0.3.jar%2385!/:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:315) ~[eventbus-6.0.3.jar%2385!/:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:296) ~[eventbus-6.0.3.jar%2385!/:?] {}
at net.minecraftforge.fml.javafmlmod.FMLModContainer.acceptEvent(FMLModContainer.java:107) ~[javafmllanguage-1.19.4-45.2.0.jar%23214!/:?] {}
at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$10(ModContainer.java:122) ~[fmlcore-1.19.4-45.2.0.jar%23213!/:?] {}
at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804) ~[?:?] {}
at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796) ~[?:?] {}
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) ~[?:?] {}
at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182) ~[?:?] {}
at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) ~[?:?] {re:computing_frames}
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) ~[?:?] {re:computing_frames}
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) ~[?:?] {}

-- System Details --
Details:
Minecraft Version: 1.19.4
Minecraft Version ID: 1.19.4
Operating System: Windows 10 (amd64) version 10.0
Java Version: 17.0.8, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode, sharing), Oracle Corporation
Memory: 2074608008 bytes (1978 MiB) / 3489660928 bytes (3328 MiB) up to 34359738368 bytes (32768 MiB)
CPUs: 16
Processor Vendor: AuthenticAMD
Processor Name: AMD Ryzen 7 5800X 8-Core Processor
Identifier: AuthenticAMD Family 25 Model 33 Stepping 2
Microarchitecture: Zen 3
Frequency (GHz): 3.80
Number of physical packages: 1
Number of physical CPUs: 8
Number of logical CPUs: 16
Graphics card #0 name: AMD Radeon RX 5700 XT
Graphics card #0 vendor: Advanced Micro Devices, Inc. (0x1002)
Graphics card #0 VRAM (MB): 4095.00
Graphics card #0 deviceId: 0x731f
Graphics card #0 versionInfo: DriverVersion=31.0.12027.9001
Memory slot #0 capacity (MB): 16384.00
Memory slot #0 clockSpeed (GHz): 3.20
Memory slot #0 type: DDR4
Memory slot #1 capacity (MB): 16384.00
Memory slot #1 clockSpeed (GHz): 3.20
Memory slot #1 type: DDR4
Memory slot #2 capacity (MB): 16384.00
Memory slot #2 clockSpeed (GHz): 3.20
Memory slot #2 type: DDR4
Memory slot #3 capacity (MB): 16384.00
Memory slot #3 clockSpeed (GHz): 3.20
Memory slot #3 type: DDR4
Virtual memory max (MB): 68205.88
Virtual memory used (MB): 18156.24
Swap memory total (MB): 2772.34
Swap memory used (MB): 0.00
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx32G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
OptiFine Version: OptiFine_1.19.4_HD_U_I4
OptiFine Build: 20230623-173837
Render Distance Chunks: 18
Mipmaps: 4
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: Sildur's+Vibrant+Shaders+v1.51+High.zip
OpenGlVersion: 3.2.0 Core Profile Context 22.20.27.09.230330
OpenGlRenderer: AMD Radeon RX 5700 XT
OpenGlVendor: ATI Technologies Inc.
CpuCount: 16
ModLauncher: 10.0.8+10.0.8+main.0ef7e830
ModLauncher launch target: forgeclient
ModLauncher naming: srg
ModLauncher services:
mixin-0.8.5.jar mixin PLUGINSERVICE
eventbus-6.0.3.jar eventbus PLUGINSERVICE
fmlloader-1.19.4-45.2.0.jar slf4jfixer PLUGINSERVICE
fmlloader-1.19.4-45.2.0.jar object_holder_definalize PLUGINSERVICE
fmlloader-1.19.4-45.2.0.jar runtime_enum_extender PLUGINSERVICE
fmlloader-1.19.4-45.2.0.jar capability_token_subclass PLUGINSERVICE
accesstransformers-8.0.4.jar accesstransformer PLUGINSERVICE
fmlloader-1.19.4-45.2.0.jar runtimedistcleaner PLUGINSERVICE
modlauncher-10.0.8.jar mixin TRANSFORMATIONSERVICE
modlauncher-10.0.8.jar OptiFine TRANSFORMATIONSERVICE
modlauncher-10.0.8.jar fml TRANSFORMATIONSERVICE
FML Language Providers:
[email protected]
lowcodefml@null
[email protected]
javafml@null
Mod List:
client-1.19.4-20230314.122934-srg.jar |Minecraft |minecraft |1.19.4 |ENQUEUE_IM|Manifest: a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f
CyclopsCore-1.19.4-1.18.4.jar |Cyclops Core |cyclopscore |1.18.4 |ENQUEUE_IM|Manifest: NOSIGNATURE
useful_backpacks-1.19.4-1.15.1.112.jar |Useful Backpacks |usefulbackpacks |1.15.1.112 |ENQUEUE_IM|Manifest: f4:a6:0b:ee:cb:8a:1a:ea:9f:9d:45:91:8f:8b:b3:ae:26:f3:bf:05:86:1d:90:9e:f6:32:2a:1a:ed:1d:ce:b0
TreeChop-1.19.4-forge-0.18.2.jar |HT's TreeChop |treechop |0.18.2 |ENQUEUE_IM|Manifest: NOSIGNATURE
CommonCapabilities-1.19.4-2.9.0.jar |CommonCapabilities |commoncapabilities |2.9.0 |ENQUEUE_IM|Manifest: NOSIGNATURE
AmbientSounds_FORGE_v5.2.18_mc1.19.4.jar |Ambient Sounds |ambientsounds |5.2.18 |ENQUEUE_IM|Manifest: NOSIGNATURE
EasyAnvils-v6.0.0-1.19.4-Forge.jar |Easy Anvils |easyanvils |6.0.0 |ENQUEUE_IM|Manifest: 9a:09:85:98:65:c4:8c:11:c5:49:f6:d6:33:23:39:df:8d:b4:ff:92:84:b8:bd:a5:83:9f:ac:7f:2a:d1:4b:6a
AdditionalEnchantedMiner-1.19.4-1194.2.1.jar |QuarryPlus |quarryplus |1194.2.1 |ENQUEUE_IM|Manifest: NOSIGNATURE
Durability101-forge-1.19.4-0.0.4 (1).jar |Durability101 |durability101 |0.0.4 |ENQUEUE_IM|Manifest: NOSIGNATURE
ironfurnaces-1.19.4-3.8.0.jar |Iron Furnaces |ironfurnaces |3.8.0 |ENQUEUE_IM|Manifest: NOSIGNATURE
CreativeCore_FORGE_v2.10.22_mc1.19.4.jar |CreativeCore |creativecore |2.10.22 |ENQUEUE_IM|Manifest: NOSIGNATURE
mcw-fences-1.0.7-mc1.19.4forge.jar |Macaw's Fences and Walls |mcwfences |1.0.7 |ENQUEUE_IM|Manifest: NOSIGNATURE
EasyMagic-v6.0.0-1.19.4-Forge.jar |Easy Magic |easymagic |6.0.0 |ENQUEUE_IM|Manifest: 9a:09:85:98:65:c4:8c:11:c5:49:f6:d6:33:23:39:df:8d:b4:ff:92:84:b8:bd:a5:83:9f:ac:7f:2a:d1:4b:6a
jei-1.19.4-forge-13.1.0.16.jar |Just Enough Items |jei |13.1.0.16 |ENQUEUE_IM|Manifest: NOSIGNATURE
wthit-forge-7.6.0.jar |wthit |wthit |7.6.0 |ENQUEUE_IM|Manifest: NOSIGNATURE
mcw-windows-2.2.0-mc1.19.4forge.jar |Macaw's Windows |mcwwindows |2.2.0 |ENQUEUE_IM|Manifest: NOSIGNATURE
IntegratedDynamics-1.19.4-1.16.7.jar |IntegratedDynamics |integrateddynamics |1.16.7 |ENQUEUE_IM|Manifest: NOSIGNATURE
journeymap-1.19.4-5.9.7-forge.jar |Journeymap |journeymap |5.9.7 |ENQUEUE_IM|Manifest: NOSIGNATURE
TravelersBackpack-1.19.4-8.4.17.jar |Traveler's Backpack |travelersbackpack |8.4.17 |ERROR |Manifest: NOSIGNATURE
SimpleStorageNetwork-1.19.4-1.9.0.jar |Simple Storage Network |storagenetwork |1.19.4-1.9.0 |ENQUEUE_IM|Manifest: 1f:47:ac:b1:61:82:96:b8:47:19:16:d2:61:81:11:60:3a:06:4b:61:31:56:7d:44:31:1e:0c:6f:22:5b:4c:ed
badpackets-forge-0.4.2.jar |Bad Packets |badpackets |0.4.2 |ENQUEUE_IM|Manifest: NOSIGNATURE
IntegratedTunnels-1.19.4-1.8.20.jar |IntegratedTunnels |integratedtunnels |1.8.20 |ENQUEUE_IM|Manifest: NOSIGNATURE
u_team_core-forge-1.19.4-5.0.2.261.jar |U Team Core |uteamcore |5.0.2.261 |ENQUEUE_IM|Manifest: f4:a6:0b:ee:cb:8a:1a:ea:9f:9d:45:91:8f:8b:b3:ae:26:f3:bf:05:86:1d:90:9e:f6:32:2a:1a:ed:1d:ce:b0
PuzzlesLib-v6.0.11-1.19.4-Forge.jar |Puzzles Lib |puzzleslib |6.0.11 |ENQUEUE_IM|Manifest: 9a:09:85:98:65:c4:8c:11:c5:49:f6:d6:33:23:39:df:8d:b4:ff:92:84:b8:bd:a5:83:9f:ac:7f:2a:d1:4b:6a
forge-1.19.4-45.2.0-universal.jar |Forge |forge |45.2.0 |ENQUEUE_IM|Manifest: 84:ce:76:e8:45:35:e4:0e:63:86:df:47:59:80:0f:67:6c:c1:5f:6e:5f:4d:b3:54:47:1a:9f:7f:ed:5e:f2:90
mOres-4.8.4-mc1.19.4.jar |mOres |mores |4.8.4-mc1.19.4 |ENQUEUE_IM|Manifest: NOSIGNATURE
EnchantingInfuser-v6.0.0-1.19.4-Forge.jar |Enchanting Infuser |enchantinginfuser |6.0.0 |ENQUEUE_IM|Manifest: 9a:09:85:98:65:c4:8c:11:c5:49:f6:d6:33:23:39:df:8d:b4:ff:92:84:b8:bd:a5:83:9f:ac:7f:2a:d1:4b:6a
ironchest-1.19.4-14.3.4.jar |Iron Chests |ironchest |1.19.4-14.3.4 |ENQUEUE_IM|Manifest: NOSIGNATURE
DungeonsArise-1.19.4-2.1.54-beta.jar |When Dungeons Arise |dungeons_arise |2.1.54-1.19.4 |ENQUEUE_IM|Manifest: NOSIGNATURE
Crash Report UUID: b385e679-e6e2-4682-a032-2d642ad41609
FML: 45.2
Forge: net.minecraftforge:45.2.0

try regenerate configs or just reinstall minecraft