So the past few days, my game has been crashing and saying that it looks like i'm using an unsupported modified version of the game. Please help me asap thanks!

Crash report:

---- Minecraft Crash Report ----

WARNING: coremods are present:
weaponlib (mw-1.11.4-beta_mc1.11.2.jar)
MalisisCorePlugin (malisiscore-1.11.2-5.1.1.jar)
Contact their authors BEFORE contacting forge

// On the bright side, I bought you a teddy bear!

Time: 9/18/18 4:22 PM
Description: Unexpected error

java.lang.ArrayIndexOutOfBoundsException: -100
at org.lwjgl.input.Keyboard.getKeyName(Keyboard.java:429)
at com.vicmatskiv.weaponlib.CustomGui.onCompatibleRenderCrosshair(CustomGui.java:123)
at com.vicmatskiv.weaponlib.compatibility.CompatibleGui.onRenderCrosshair(CompatibleGui.java:18)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_119_CompatibleGui_onRenderCrosshair_Pre.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185)
at net.minecraftforge.client.GuiIngameForge.pre(GuiIngameForge.java:885)
at net.minecraftforge.client.GuiIngameForge.renderCrosshairs(GuiIngameForge.java:215)
at net.minecraftforge.client.GuiIngameForge.func_175180_a(GuiIngameForge.java:146)
at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1089)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1077)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:372)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


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

-- Head --
Thread: Client thread
Stacktrace:
at org.lwjgl.input.Keyboard.getKeyName(Keyboard.java:429)
at com.vicmatskiv.weaponlib.CustomGui.onCompatibleRenderCrosshair(CustomGui.java:123)
at com.vicmatskiv.weaponlib.compatibility.CompatibleGui.onRenderCrosshair(CompatibleGui.java:18)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_119_CompatibleGui_onRenderCrosshair_Pre.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185)
at net.minecraftforge.client.GuiIngameForge.pre(GuiIngameForge.java:885)
at net.minecraftforge.client.GuiIngameForge.renderCrosshairs(GuiIngameForge.java:215)
at net.minecraftforge.client.GuiIngameForge.func_175180_a(GuiIngameForge.java:146)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityPlayerSP'firebro92'/230, l='MpServer', x=-451.96, y=70.00, z=759.03]]
Chunk stats: MultiplayerChunkCache: 0, 0
Level seed: 0
Level generator: ID 02 - largeBiomes, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (-260,80,1103), Chunk: (at 12,5,15 in -17,68; contains blocks -272,0,1088 to -257,255,1103), Region: (-1,2; contains chunks -32,64 to -1,95, blocks -512,0,1024 to -1,255,1535)
Level time: 26732920 game time, 1106773 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 1 total; [EntityPlayerSP'firebro92'/230, l='MpServer', x=-451.96, y=70.00, z=759.03]]
Retry entities: 0 total; []
Server brand: fml,forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:415)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2655)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:401)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.11.2
Operating System: Mac OS X (x86_64) version 10.13.6
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 700666672 bytes (668 MB) / 1845493760 bytes (1760 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 7 total; -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 98
FML: MCP 9.38 Powered by Forge 13.20.1.2386 20 mods loaded, 20 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA minecraft{1.11.2} [Minecraft] (minecraft.jar)
UCHIJAAAA mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAA FML{8.0.99.99} [Forge Mod Loader] (forge-1.11.2-13.20.1.2386.jar)
UCHIJAAAA forge{13.20.1.2386} [Minecraft Forge] (forge-1.11.2-13.20.1.2386.jar)
UCHIJAAAA craftstudioapi{0.3.0-beta} [CraftStudio API] (CraftStudio-API-1.11.2.jar)
UCHIJAAAA animania{1.3.3} [Animania] (Animania-Mod-1.11.2.jar)
UCHIJAAAA aquaculture{1.5.1} [Aquaculture] (Aquaculture-1.11.2-1.5.1.2.jar)
UCHIJAAAA blockarmor{2.4.3} [Block Armor] (Block-Armor-Mod-1.11.2.jar)
UCHIJAAAA cfm{4.1.2} [MrCrayfish's Furniture Mod] (cfm-4.1.2-mc1.11.2.jar)
UCHIJAAAA customnpcs{1.11.2} [CustomNPCs] (CustomNPCs_1.11.2(21jul17).jar)
UCHIJAAAA fcl{XI.25} [Fexcraft Common Library] (Fexcraft-Common-Library-1.11.2.jar)
UCHIJAAAA frsm{4.0.00} [Fex's Random Stuff Mod] (FRSM-Mod-1.11.2.jar)
UCHIJAAAA subcommonlib{1.2.0.1} [Subaraki's Common Library] (SubLib-1.11.2.jar)
UCHIJAAAA fashion{1.11.2 0.1.2.0} [fashion mod] (Just-Fashion-Mod-1.11.2.jar)
UCHIJAAAA malisiscore{1.11.2-5.1.1} [MalisisCore] (malisiscore-1.11.2-5.1.1.jar)
UCHIJAAAA malisisdoors{1.11.2-6.1.0} [MalisisDoors] (malisisdoors-1.11.2-6.1.0.jar)
UCHIJAAAA mw{1.11.4-beta} [Modern Warfare] (mw-1.11.4-beta_mc1.11.2.jar)
UCHIJAAAA personalcars{1.2.2} [Personal Cars] (PersonalCars-1.2.2.jar)
UCHIJAAAA arcademod{1.3.4} [Arcade Mod] (Super-Games-Mod-1.11.2.jar)
UCHIJAAAA xaerominimap{1.13.9} [Xaero's Minimap] (Xaeros-Minimap-Mod-1.11.2.jar)
Loaded coremods (and transformers):
weaponlib (mw-1.11.4-beta_mc1.11.2.jar)
com.vicmatskiv.weaponlib.core.WeaponlibClassTransformer
MalisisCorePlugin (malisiscore-1.11.2-5.1.1.jar)
net.malisis.core.util.chunkcollision.ChunkCollisionTransformer
net.malisis.core.util.chunkblock.ChunkBlockTransformer
net.malisis.core.renderer.transformer.MalisisRendererTransformer
net.malisis.core.renderer.icon.asm.TextureMapTransformer
net.malisis.core.util.clientnotif.ClientNotifTransformer
Launched Version: 1.11.2-forge1.11.2-13.20.1.2386
LWJGL: 2.9.2
OpenGL: Intel Iris Pro OpenGL Engine GL version 2.1 INTEL-10.36.19, Intel Inc.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (Canada)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Core(TM) i5-4570R CPU @ 2.70GHz