---- Minecraft Crash Report ----
// Shall we play a game?

Time: 03/03/21 08:46
Description: Rendering entity in world

java.lang.NoClassDefFoundError: com/github/alexthe666/rats/client/render/entity/RenderRatProtector$Overlay
at com.github.alexthe666.rats.client.event.ClientEvents.onLivingRender(ClientEvents.java:471) ~[?:7.0.4-1.16.3] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraftforge.eventbus.ASMEventHandler_45_ClientEvents_onLivingRender_Post.invoke(.dynamic) ~[?:?] {}
at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus$$Lambda$2533/1802602941.invoke(Unknown Source) ~[?:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
at net.minecraft.client.renderer.entity.LivingRenderer.func_225623_a_(LivingRenderer.java:131) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.entity.MobRenderer.func_225623_a_(SourceFile:43) ~[?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.client.renderer.entity.MobRenderer.func_225623_a_(SourceFile:18) ~[?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.client.renderer.entity.EntityRendererManager.func_229084_a_(EntityRendererManager.java:251) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.WorldRenderer.func_228418_a_(WorldRenderer.java:1202) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.WorldRenderer.func_228426_a_(WorldRenderer.java:1010) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:607) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_195458_a(GameRenderer.java:425) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:976) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) [?:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.4-35.1.37.jar:35.1] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$435/1415545023.call(Unknown Source) [forge-1.16.4-35.1.37.jar:35.1] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
Caused by: java.lang.ClassNotFoundException: com.github.alexthe666.rats.client.render.entity.RenderRatProtector$Overlay
at java.lang.ClassLoader.findClass(ClassLoader.java:530) ~[?:1.8.0_51] {}
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51] {}
at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:106) ~[modlauncher-8.0.9.jar:?] {re:classloading}
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51] {}
... 28 more
Suppressed: java.lang.ClassNotFoundException: Failed to find class bytes for com.github.alexthe666.rats.client.render.entity.RenderRatProtector$Overlay
at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:260) ~[modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:136) ~[modlauncher-8.0.9.jar:?] {re:classloading}
at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98) ~[modlauncher-8.0.9.jar:?] {re:classloading}
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51] {}
at com.github.alexthe666.rats.client.event.ClientEvents.onLivingRender(ClientEvents.java:471) ~[?:7.0.4-1.16.3] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraftforge.eventbus.ASMEventHandler_45_ClientEvents_onLivingRender_Post.invoke(.dynamic) ~[?:?] {}
at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus$$Lambda$2533/1802602941.invoke(Unknown Source) ~[?:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
at net.minecraft.client.renderer.entity.LivingRenderer.func_225623_a_(LivingRenderer.java:131) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.entity.MobRenderer.func_225623_a_(SourceFile:43) ~[?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.client.renderer.entity.MobRenderer.func_225623_a_(SourceFile:18) ~[?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.client.renderer.entity.EntityRendererManager.func_229084_a_(EntityRendererManager.java:251) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.WorldRenderer.func_228418_a_(WorldRenderer.java:1202) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.WorldRenderer.func_228426_a_(WorldRenderer.java:1010) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:607) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_195458_a(GameRenderer.java:425) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:976) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) [?:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.4-35.1.37.jar:35.1] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$435/1415545023.call(Unknown Source) [forge-1.16.4-35.1.37.jar:35.1] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
Caused by: java.nio.channels.ClosedChannelException
at sun.nio.ch.FileChannelImpl.ensureOpen(FileChannelImpl.java:109) ~[?:1.8.0_51] {}
at sun.nio.ch.FileChannelImpl.position(FileChannelImpl.java:275) ~[?:1.8.0_51] {}
at sun.nio.ch.FileChannelImpl.position(FileChannelImpl.java:49) ~[?:1.8.0_51] {}
at com.sun.nio.zipfs.ZipFileSystem.readFullyAt(ZipFileSystem.java:952) ~[zipfs.jar:1.8.0_51] {}
at com.sun.nio.zipfs.ZipFileSystem.readFullyAt(ZipFileSystem.java:945) ~[zipfs.jar:1.8.0_51] {}
at com.sun.nio.zipfs.ZipFileSystem.getDataPos(ZipFileSystem.java:931) ~[zipfs.jar:1.8.0_51] {}
at com.sun.nio.zipfs.ZipFileSystem.access$400(ZipFileSystem.java:80) ~[zipfs.jar:1.8.0_51] {}
at com.sun.nio.zipfs.ZipFileSystem$EntryInputStream.(ZipFileSystem.java:1472) ~[zipfs.jar:1.8.0_51] {}
at com.sun.nio.zipfs.ZipFileSystem.getInputStream(ZipFileSystem.java:1402) ~[zipfs.jar:1.8.0_51] {}
at com.sun.nio.zipfs.ZipFileSystem.newInputStream(ZipFileSystem.java:547) ~[zipfs.jar:1.8.0_51] {}
at com.sun.nio.zipfs.ZipPath.newInputStream(ZipPath.java:645) ~[zipfs.jar:1.8.0_51] {}
at com.sun.nio.zipfs.ZipFileSystemProvider.newInputStream(ZipFileSystemProvider.java:278) ~[zipfs.jar:1.8.0_51] {}
at java.nio.file.Files.newInputStream(Files.java:152) ~[?:1.8.0_51] {}
at net.minecraftforge.fml.loading.ModJarURLHandler$ModJarURLConnection.getInputStream(ModJarURLHandler.java:87) ~[forge-1.16.4-35.1.37.jar:35.1] {}
at cpw.mods.modlauncher.TransformingClassLoader$AutoURLConnection.(TransformingClassLoader.java:174) ~[modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:247) ~[modlauncher-8.0.9.jar:?] {}
... 31 more

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

-- Head --
Thread: Render thread
Stacktrace:
at com.github.alexthe666.rats.client.event.ClientEvents.onLivingRender(ClientEvents.java:471) ~[?:7.0.4-1.16.3] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraftforge.eventbus.ASMEventHandler_45_ClientEvents_onLivingRender_Post.invoke(.dynamic) ~[?:?] {}
at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus$$Lambda$2533/1802602941.invoke(Unknown Source) ~[?:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
at net.minecraft.client.renderer.entity.LivingRenderer.func_225623_a_(LivingRenderer.java:131) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.entity.MobRenderer.func_225623_a_(SourceFile:43) ~[?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.client.renderer.entity.MobRenderer.func_225623_a_(SourceFile:18) ~[?:?] {re:classloading,pl:accesstransformer:B}
-- Entity being rendered --
Details:
Entity Type: minecraft:skeleton (net.minecraft.entity.monster.SkeletonEntity)
Entity ID: 232
Entity Name: Skeleton
Entity's Exact location: 215.50, 65.00, -227.50
Entity's Block location: World: (215,65,-228), Chunk: (at 7,4,12 in 13,-15; contains blocks 208,0,-240 to 223,255,-225), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Entity's Momentum: 0.00, -0.06, 0.00
Entity's Passengers: []
Entity's Vehicle: ERROR NullPointerException: null

-- Renderer details --
Details:
Assigned renderer: net.minecraft.client.renderer.entity.SkeletonRenderer@1bad6995
Location: -21.66,-8.62,56.35 - World: (-22,-9,56), Chunk: (at 10,-1,8 in -2,3; contains blocks -32,0,48 to -17,255,63), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Rotation: -68.90625
Delta: 0.2800064
Stacktrace:
at net.minecraft.client.renderer.entity.EntityRendererManager.func_229084_a_(EntityRendererManager.java:251) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.WorldRenderer.func_228418_a_(WorldRenderer.java:1202) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.WorldRenderer.func_228426_a_(WorldRenderer.java:1010) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:607) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}

-- Affected level --
Details:
All players: 1 total; [ClientPlayerEntity['JazBizarre'/193, l='ClientLevel', x=237.16, y=72.00, z=-283.85]]
Chunk stats: Client Chunk Cache: 441, 169
Level dimension: minecraft:overworld
Level spawn location: World: (224,76,240), Chunk: (at 0,4,0 in 14,15; contains blocks 224,0,240 to 239,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 4123691 game time, 4910125 day time
Server brand: forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.world.ClientWorld.func_72914_a(ClientWorld.java:447) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2024) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:623) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) [?:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.4-35.1.37.jar:35.1] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$435/1415545023.call(Unknown Source) [forge-1.16.4-35.1.37.jar:35.1] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}

-- 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_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 985139088 bytes (939 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
CPUs: 4
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
ModLauncher: 8.0.9+86+master.3cf110c
ModLauncher launch target: fmlclient
ModLauncher naming: srg
ModLauncher services:
/mixin-0.8.2.jar mixin PLUGINSERVICE
/eventbus-4.0.0.jar eventbus PLUGINSERVICE
/forge-1.16.4-35.1.37.jar object_holder_definalize PLUGINSERVICE
/forge-1.16.4-35.1.37.jar runtime_enum_extender PLUGINSERVICE
/accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE
/forge-1.16.4-35.1.37.jar capability_inject_definalize PLUGINSERVICE
/forge-1.16.4-35.1.37.jar runtimedistcleaner PLUGINSERVICE
/mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE
/forge-1.16.4-35.1.37.jar fml TRANSFORMATIONSERVICE
FML: 35.1
Forge: net.minecraftforge:35.1.37
FML Language Providers:
[email protected]
minecraft@1
Mod List:
forge-1.16.4-35.1.37-client.jar |Minecraft |minecraft |1.16.4 |DONE |NOSIGNATURE
DoubleSlabs-1.16-3.4.10.jar |Double Slabs |doubleslabs |3.4.10 |DONE |NOSIGNATURE
ftb-gui-library-1604.1.1.26.jar |FTB GUI Library |ftbguilibrary |1604.1.1.26 |DONE |NOSIGNATURE
forge-1.16.4-35.1.37-universal.jar |Forge |forge |35.1.37 |DONE |22:af:21:d8:19:82:7f:93:94:fe:2b:ac:b7:e4:41:57:68:39:87:b1:a7:5c:c6:44:f9:25:74:21:14:f5:0d:90
Craftable+Saddles+[1.16.4]-1.3.jar |Craftable Saddles |craftable_saddles |1.3 |DONE |NOSIGNATURE
create-mc1.16.3_v0.3c.jar |Create |create |mc1.16.3_v0.3c |DONE |NOSIGNATURE
citadel-1.5.3.jar |Citadel |citadel |1.5.3 |DONE |NOSIGNATURE
rats-7.0.4-1.16.3.jar |Rats |rats |7.0.4 |DONE |NOSIGNATURE
jei-1.16.4-7.6.1.70.jar |Just Enough Items |jei |7.6.1.70 |DONE |NOSIGNATURE
Crash Report UUID: cbf78e8b-5695-498d-906e-89b145e0f110
Launched Version: 1.16.4-forge-35.1.37
Backend library: LWJGL version 3.2.2 build 10
Backend API: Intel(R) HD Graphics 520 GL version 4.6.0 - Build 26.20.100.7325, Intel
GL Caps: Using framebuffer using OpenGL 3.0
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'forge'
Type: Client (map_client.txt)
Graphics mode: fast
Resource Packs: mod_resources, vanilla
Current Language: English (United Kingdom)
CPU: 4x Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz

NoSuchMethodError and ClassDefNotFoundError errors are something I havent been able to reproduce. These methods should exist, especially when it comes to AI tasks, so theres definitely something else going on here. Closing as this is something I cant exactly deal with without more context