Technical Specs (please complete the following information):

• Craft to Exile Version 2.0.3c
• World Type multiplayer
• RAM Allocation 4gb?

Describe the bug
Game crashes when trying to enchant sword with Mending and other enchantments (currently, enchanting with books seems bugged).

To Reproduce
Steps to reproduce the behavior:
Start with clean Gear item (used Royal Sword)
Enchant at anvil with book of Mending
Enchant at anvil with other book, causing crash.

Expected behavior
Normal enchantment behavior.

Crash report:
---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 2/3/21 11:11 AM
Description: mouseClicked event handler

java.lang.ArrayIndexOutOfBoundsException

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_437.method_25412(class_437.java:438)

-- Affected screen --
Details:
Screen name: net.minecraft.class_471
Stacktrace:
at net.minecraft.class_437.method_25412(class_437.java:438)
at net.minecraft.class_312.method_1601(class_312.java:92)
at net.minecraft.class_312.method_22686(class_312.java:162)
at net.minecraft.class_1255.execute(class_1255.java:94)
at net.minecraft.class_312.method_22684(class_312.java:162)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101)
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:109)
at net.minecraft.class_1041.method_15998(class_1041.java:308)
at net.minecraft.class_310.method_1523(class_310.java:1068)
at net.minecraft.class_310.method_1514(class_310.java:681)
at net.minecraft.client.main.Main.main(Main.java:215)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:226)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:139)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at link.infra.jumploader.Jumploader.onLoad(Jumploader.java:171)
at cpw.mods.modlauncher.TransformationServiceDecorator.onLoad(TransformationServiceDecorator.java:53)
at cpw.mods.modlauncher.TransformationServicesHandler.lambda$loadTransformationServices$11(TransformationServicesHandler.java:131)
at java.util.HashMap$Values.forEach(Unknown Source)
at cpw.mods.modlauncher.TransformationServicesHandler.loadTransformationServices(TransformationServicesHandler.java:131)
at cpw.mods.modlauncher.TransformationServicesHandler.initializeTransformationServices(TransformationServicesHandler.java:56)
at cpw.mods.modlauncher.Launcher.run(Launcher.java:76)
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66)
at io.github.zekerzhayard.forgewrapper.installer.Main.main(Main.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196)
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231)
at org.multimc.EntryPoint.listen(EntryPoint.java:143)
at org.multimc.EntryPoint.main(EntryPoint.java:34)

-- Affected level --
Details:
All players: 1 total; [class_746['Jubban'/40794, l='ClientLevel', x=-1204.73, y=14.00, z=410.06]]
Chunk stats: Client Chunk Cache: 529, 303
Level dimension: minecraft:overworld
Level spawn location: World: (-1068,66,155), Chunk: (at 4,4,11 in -67,9; contains blocks -1072,0,144 to -1057,255,159), Region: (-3,0; contains chunks -96,0 to -65,31, blocks -1536,0,0 to -1025,255,511)
Level time: 7651659 game time, 9102218 day time
Server brand: Fabric/Gunpowder
Server type: Non-integrated multiplayer server

-- System Details --
Details:
Minecraft Version: 1.16.4
Minecraft Version ID: 1.16.4
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_251, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 4114887624 bytes (3924 MB) / 14043054080 bytes (13392 MB) up to 15077474304 bytes (14379 MB)
CPUs: 16
JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms8496m -Xmx16176m
Fabric Mods:
adorn: Adorn 1.12.2+1.16.4
adventurez: AdventureZ 1.1.5
allure: Allure 1.2.8
angerable-patch: Angerable Patch 1.1.0-1.16.4
appleskin: AppleSkin 1.0.11
architectury: Architectury 1.5.104
artofalchemy: Art of Alchemy: Memoriam 1.0.0-rc4+1.16.4
audiooutput: AudioOutput 0.0.3
authme: Auth Me 1.4.0
autoconfig1u: Auto Config v1 Updated 3.3.1
balance_of_exile: Balance of Exile 1.0.3
betterdroppeditems: Better Dropped Items 1.2.4-1.16.2
betterend: Better End 0.8.8-beta
betternether: Better Nether 5.0.4
betterpingdisplay: Better Ping Display 1.1
betterweather: Better Weather 1.0.0
biome_locator: Biome Locator 1.0.0
blue_endless_jankson: jankson 1.2.0
blur: Blur (Fabric) 2.0.0
byg: BYG 1.1.3
campanion: Campanion 1.3.2
cardinal-components-base: Cardinal Components API (base) 2.7.10
cardinal-components-chunk: Cardinal Components API (chunks) 2.6.0
cardinal-components-entity: Cardinal Components API (entities) 2.7.10
cardinal-components-item: Cardinal Components API (items) 2.7.9
cardinal-components-util: Cardinal Components API (utilities) 2.6.0
cardinal-components-world: Cardinal Components API (worlds) 2.6.0
cavebiomes: Cave Biomes 0.5.1
charm: Charm 2.2.2
charmonium: Charmonium 2.2.2
chat_heads: Chat Heads 0.2.2+1.16.2
chunkpregen: Fabric Chunk Pregenerator 0.3.3
cinderscapes: Cinderscapes 1.3.2
cleancut: CleanCut mc1.16-2.1-fabric
clear-skies: Clear Skies 1.5.55
cloth-api: Cloth API 1.4.9
cloth-armor-api-v1: Cloth Armor API v1 1.4.9
cloth-basic-math: Cloth Basic Math 0.5.1
cloth-client-events-v0: Cloth Client Events v0 1.4.9
cloth-common-events-v1: Cloth Common Events v1 1.4.9
cloth-config2: Cloth Config v4 4.8.3
cloth-datagen-api-v1: Cloth Datagen v1 1.4.9
cloth-durability-bar-api-v1: Cloth Durability Bar API v1 1.4.9
cloth-dynamic-registry-api-v1: Cloth Dynamic Registry API v1 1.4.9
cloth-scissors-api-v1: Cloth Scissors API v1 1.4.9
cloth-utils-v1: Cloth Utils v1 1.4.9
com_electronwill_night-config_core: core 3.6.2
com_electronwill_night-config_toml: toml 3.6.2
com_github_therandomlabs_trlutils-config: TRLUtils-Config master-SNAPSHOT
com_github_therandomlabs_trlutils-fabric: TRLUtils-Fabric 1.16-SNAPSHOT
com_moandjiezana_toml_toml4j: toml4j 0.7.2
compactstatuseffects: Compact Status Effects 1.2.3
controlling: Controlling For Fabric 1.1.2
craftablehorsearmour: Craftable Horse Armour & Saddle 1.16-1.3-Fabric
craftpresence: CraftPresence 1.7.6
creeperspores: Creeper Spores 1.4.1
crimsonmoon: Crimson Moon 1.2.3-1.16.2
curios: Curios API 0.0.10-1.16.3
dankstorage: Dank Storage 1.9a-1.16.3
diggusmaximus: Diggus Maximus 1.4.2-1.16.3
disable_custom_worlds_advice: Disable Custom Worlds Advice 1.2
dragonloot: DragonLoot 1.0.4
dungeons_of_exile: Dungeons of Exile 1.1.1
dynamicfps: Dynamic FPS 2.0.1
dynamicsoundfilters: Dynamic Sound Filters 1.2.0+1.16.5
editsign: Edit Sign 2.2.0
enchantmentdescriptions: Enchantment Descriptions 1.0.0
endreborn: End: Rebellion 1.8
fabric: Fabric API 0.29.4+1.16
fabric-api-base: Fabric API Base 0.2.0+daa38b3d7d
fabric-biome-api-v1: Fabric Biome API (v1) 3.1.1+ca58154a7d
fabric-blockrenderlayer-v1: Fabric BlockRenderLayer Registration (v1) 1.1.5+ca58154a7d
fabric-command-api-v1: Fabric Command API (v1) 1.0.10+ca58154a7d
fabric-commands-v0: Fabric Commands (v0) 0.2.2+ca58154a7d
fabric-containers-v0: Fabric Containers (v0) 0.1.10+ca58154a7d
fabric-content-registries-v0: Fabric Content Registries (v0) 0.2.1+ca58154a7d
fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.1.3+ca58154a7d
fabric-dimensions-v1: fabric-dimensions-v1 2.0.2+ca58154a7d
fabric-entity-events-v1: Fabric Entity Events (v1) 1.0.3+ca58154a7d
fabric-events-interaction-v0: Fabric Events Interaction (v0) 0.4.2+ca58154a7d
fabric-events-lifecycle-v0: Fabric Events Lifecycle (v0) 0.2.1+ca58154a7d
fabric-furnaces: Fabric Furnaces 1.3.3-1.16.4
fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.0.6+ca58154a7d
fabric-item-api-v1: Fabric Item API (v1) 1.2.1+ca58154a7d
fabric-item-groups-v0: Fabric Item Groups (v0) 0.2.3+ca58154a7d
fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.0.2+ca58154a7d
fabric-keybindings-v0: Fabric Key Bindings (v0) 0.2.1+ca58154a7d
fabric-language-kotlin: Fabric Language Kotlin 1.4.21+build.1
fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 1.2.1+ca58154a7d
fabric-loot-tables-v1: Fabric Loot Tables (v1) 1.0.2+ca58154a7d
fabric-mining-levels-v0: Fabric Mining Levels (v0) 0.1.3+ca58154a7d
fabric-models-v0: Fabric Models (v0) 0.2.1+ca58154a7d
fabric-networking-api-v1: Fabric Networking API (v1) 1.0.1+ca58154a7d
fabric-networking-blockentity-v0: Fabric Networking Block Entity (v0) 0.2.8+ca58154a7d
fabric-networking-v0: Fabric Networking (v0) 0.3.2+ca58154a7d
fabric-object-builder-api-v1: Fabric Object Builder API (v1) 1.9.3+ca58154a7d
fabric-object-builders-v0: Fabric Object Builders (v0) 0.7.2+ca58154a7d
fabric-particles-v1: Fabric Particles (v1) 0.2.4+ca58154a7d
fabric-registry-sync-v0: Fabric Registry Sync (v0) 0.7.4+ca58154a7d
fabric-renderer-api-v1: Fabric Renderer API (v1) 0.4.1+ca58154a7d
fabric-renderer-indigo: Fabric Renderer - Indigo 0.4.4+ca58154a7d
fabric-renderer-registries-v1: Fabric Renderer Registries (v1) 2.2.1+ca58154a7d
fabric-rendering-data-attachment-v1: Fabric Rendering Data Attachment (v1) 0.1.5+ca58154a7d
fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 0.1.13+ca58154a7d
fabric-rendering-v0: Fabric Rendering (v0) 1.1.2+ca58154a7d
fabric-rendering-v1: Fabric Rendering (v1) 1.5.1+ca58154a7d
fabric-resource-loader-v0: Fabric Resource Loader (v0) 0.4.2+ca58154a7d
fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.1.1+ca58154a7d
fabric-structure-api-v1: Fabric Structure API (v1) 1.1.4+ca58154a7d
fabric-tag-extensions-v0: Fabric Tag Extensions (v0) 1.1.1+ca58154a7d
fabric-textures-v0: Fabric Textures (v0) 1.0.6+ca58154a7d
fabric-tool-attribute-api-v1: Fabric Tool Attribute API (v1) 1.2.6+ca58154a7d
fabricloader: Fabric Loader 0.11.1
fallflyinglib: FallFlyingLib 1.1.0
fancymenu: FancyMenu 1.6.0
fastbench: FastBench 2.3
fastfurnace: FastFurnace 2.3
fatxporbs: Fat Experience Orbs 0.0.9
fiber: fiber 0.23.0-2
flan: Flan 1.16.2-1.2.2
flesh2leather: Flesh2Leather 1.0.2
go-fish: Go Fish 1.2.0-beta-1.16.4
gottaclimbfast: Gotta Climb Fast! 1.0
grindenchantments: Grind Enchantments 1.1.3+1.16.3
hardcorequesting: Hardcore Questing Mode 1.16.2+5.5.4
heartbond: Heartbond 1.0.0
hypnos: Hypnos 0.1.1
iamverysmart: I Am Very Smart 2.1.0+mc1.16.1
illuminations: Illuminations 1.4.4
inventoryprofiles: Inventory Profiles 0.4.2
invtrashslot: InvTrashSlot 1.0.2
ironchest: Iron Chests 1.1.3
itemflexer: ItemFlexer 1.1.0
itemscroller: Item Scroller 0.15.0-dev.20210111.205029
jankson: Jankson 3.0.1+j1.2.0
java: Java HotSpot(TM) 64-Bit Server VM 8
jumploader: Jumploader 2.1.2
konkrete: Konkrete 1.1.1
kubejs: KubeJS 1605.3.5-build.157
kyrptconfig: Kytpt Config 1.1.4-1.16
lambdynlights: LambDynamicLights 1.3.4+1.16
leaf-decay: Leaf Decay 1.2.0-1.16.1
libblockattributes: LibBlockAttributes 0.8.5
libblockattributes_core: LibBlockAttributes (Core) 0.8.5
libblockattributes_fluids: LibBlockAttributes (Fluids) 0.8.5
libblockattributes_items: LibBlockAttributes (Items) 0.8.5
libcd: LibCapableData 3.0.3+1.16.3
libgui: LibGui 3.2.2+1.16.3
library_of_exile: Library of Exile 1.0.6
libstructure: LibStructure 1.5
lightoverlay: Light Overlay 5.6.1
lithium: Lithium 0.6.1
lootbeams: Lootbeams 1.0.2
malilib: MaLiLib 0.10.0-dev.21+arne.2
microconfig: Microconfig 1.0.3
minecraft: Minecraft 1.16.4
mmorpg: Age of Exile 1.7.10
modmenu: Mod Menu 1.14.15
mostructures: Mo' Structures 1.0.1+mc.1.16.4
musicdr: Music Duration Reducer 1.1.3
nbtcrafting: NBT Crafting 2.0.3+mc1.16.4
org_aperlambda_lambdajcommon: lambdajcommon 1.8.1
org_jetbrains_annotations: annotations 20.0.0
org_jetbrains_kotlin_kotlin-reflect: kotlin-reflect 1.4.21
org_jetbrains_kotlin_kotlin-stdlib: kotlin-stdlib 1.4.21
org_jetbrains_kotlin_kotlin-stdlib-jdk7: kotlin-stdlib-jdk7 1.4.21
org_jetbrains_kotlin_kotlin-stdlib-jdk8: kotlin-stdlib-jdk8 1.4.21
org_jetbrains_kotlinx_kotlinx-coroutines-core-jvm: kotlinx-coroutines-core-jvm 1.4.2
org_jetbrains_kotlinx_kotlinx-coroutines-jdk8: kotlinx-coroutines-jdk8 1.4.2
org_yaml_snakeyaml: snakeyaml 1.25
origins: Origins 0.4.6
origins-classes: Origins: Classes 1.1.0
patchouli: Patchouli 1.16.4-48-FABRIC
petowner: Pet Owner 1.7.1-1.16.2+
phosphor: Phosphor 0.7.0+build.10
polymorph: Polymorph 0.0.5-1.16.3
projectsavethepets: Project: Save the Pets! 1.0.2+minecraft-1.16.4
randompatches: RandomPatches 1.16.1-0.0.0.5-fabric
reach-entity-attributes: Reach Entity Attribute 1.0.1
repurposed_structures: Repurposed Structures 1.16.4-1.7.4
rhino: Rhino 1.7.13
roughlyenoughitems: Roughly Enough Items 5.9.1
roughlyenoughitems-api: REI (API) 5.9.1
roughlyenoughitems-default-plugin: REI (Default Plugin) 5.9.1
roughlyenoughitems-runtime: REI (Runtime) 5.9.1
roughlyenoughresources: Roughly Enough Resources 2.1.3
satin: Satin 1.5.1
smoothboot: Smooth Boot 1.16.4-1.4.0
spruceui: SpruceUI 2.0.4+1.16
static-content: Static Content 1.0.1-1.16.2
staticdata: Static Data 1.1.2
structure-helpers: Structure Helpers 3.0.0
terraform-biome-builder-api-v1: Terraform Biome Builder API (v1) 1.0.0+build.4
terraform-config-api-v1: Terraform Config API (v1) 1.0.0+build.4
terraform-dirt-api-v1: Terraform Dirt API (v1) 1.1.0+build.4
terraform-overworld-biome-extensions-api-v1: Terraform Overworld Biome Extensions API (v1) 1.0.0+build.4
terraform-shapes-api-v1: Terraform Shapes API (v1) 1.0.1
terraform-surfaces-api-v1: Terraform Surfaces API (v1) 1.0.0+build.4
terraform-tree-api-v1: Terraform Tree API (v1) 1.0.1+build.4
terraform-wood-api-v1: Terraform Wood API (v1) 1.0.1
terrestria: Terrestria 2.1.6
the_bumblezone: The Bumblezone - Fabric 1.16.5-2.2.17
tk_valoeghese_zoesteriaconfig: ZoesteriaConfig 1.3.2
trade: Trade 1.1.3
transferchestmod: Transfer Chest 1.1.3
trapexpansion: Trap Expansion 1.3.2
traverse: Traverse 3.3.1
ttg_fallfest: FallFest 2020 0.1.1
vanguard: Vanguard 1.0.5
vanilladeathchest: VanillaDeathChest 1.16.3-1.11.0.7-fabric
voyager: Voyager 1.0.0
waila: Hwyla 1.9.22
ward_blocks: Ward Blocks 1.0.20
waystones: Waystones 1.1.1.1
whereisit: Where Is It 1.9.2
wildworld: Wild World 1.3.0+1.16.2
wolveswitharmor: Wolves With Armor 1.5.2-1.16.2
xaerominimap: Xaero's Minimap 21.1.1
xaeroworldmap: Xaero's World Map 1.11.10
xp_storage: XP Storage 1.4+1.16.4
yosbr: YOSBR 0.1.1
zoob: Monster Of The Ocean Depths 2.5.0
Patchouli open book context: n/a
Launched Version: MultiMC5
Backend library: LWJGL version 3.2.2 build 10
Backend API: GeForce GTX 1070 Ti/PCIe/SSE2 GL version 4.6.0 NVIDIA 460.79, NVIDIA Corporation
GL Caps: Using framebuffer using OpenGL 3.0
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fabric'
Type: Client (map_client.txt)
Graphics mode: fancy
Resource Packs: vanilla, Fabric Mods, kubejs:resource_pack
Current Language: English (US)
CPU: 16x AMD Ryzen 7 3800X 8-Core Processor

Haha next time you should pastebin it so its less cluttered! Thanks though, I think i see the issue.