---- Minecraft Crash Report ----

WARNING: coremods are present:
  CTMCorePlugin (ctm-mc1.12.2-1.0.1.30.jar)
  Inventory Tweaks Coremod (inventorytweaks-1.64dev.146.jar)
  LoadingPlugin (skillable-beta-10.jar)
  SSLoadingPlugin (sereneseasons-1.12.2-1.2.18-universal.jar)
Contact their authors BEFORE contacting forge

// Don't do that.

Time: 24.01.20 11:29
Description: Initializing game

java.lang.NoClassDefFoundError: cer
	at java.lang.Class.getDeclaredFields0(Native Method)
	at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
	at java.lang.Class.getField0(Class.java:2975)
	at java.lang.Class.getField(Class.java:1701)
	at net.minecraftforge.fml.client.FMLClientHandler.detectOptifine(FMLClientHandler.java:291)
	at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:203)
	at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:439)
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:351)
	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:497)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.ClassNotFoundException: cer
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 15 more
Caused by: java.lang.NullPointerException
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
	... 17 more


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

-- Head --
Thread: Client thread
Stacktrace:
	at java.lang.Class.getDeclaredFields0(Native Method)
	at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
	at java.lang.Class.getField0(Class.java:2975)
	at java.lang.Class.getField(Class.java:1701)
	at net.minecraftforge.fml.client.FMLClientHandler.detectOptifine(FMLClientHandler.java:291)
	at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:203)
	at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:439)

-- Initialization --
Details:
Stacktrace:
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:351)
	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:497)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
	Minecraft Version: 1.10.2
	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: 588408832 bytes (561 MB) / 872415232 bytes (832 MB) up to 2147483648 bytes (2048 MB)
	JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML:
	Loaded coremods (and transformers):
CTMCorePlugin (ctm-mc1.12.2-1.0.1.30.jar)
  team.chisel.ctm.client.asm.CTMTransformer
Inventory Tweaks Coremod (inventorytweaks-1.64dev.146.jar)
  invtweaks.forge.asm.ContainerTransformer
LoadingPlugin (skillable-beta-10.jar)
  vazkii.skillable.base.asm.ClassTransformer
SSLoadingPlugin (sereneseasons-1.12.2-1.2.18-universal.jar)
  sereneseasons.asm.transformer.EntityRendererTransformer
  sereneseasons.asm.transformer.WorldTransformer
	Launched Version: ForgeOptiFine 1.10.2
	LWJGL: 2.9.4
	OpenGL: GeForce RTX 2070 SUPER/PCIe/SSE2 GL version 4.6.0 NVIDIA 441.87, NVIDIA Corporation
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 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: ~~ERROR~~ NullPointerException: null
	Profiler Position: N/A (disabled)
	CPU: 16x AMD Ryzen 7 3700X 8-Core Processor