Hola necesito ayuda. He metido algunos mods al Forge (todos son la misma versión) y al iniciar el juego me aparece que se estan cargando los mods y de golpe aparece la pantalla de launcher con este mensaje:

The game crashed whilst initializing game
The game crashed whilst initializing game
Error: java.lang.NoSuchMethodError: net.minecraftforge.event.RegistryEvent$Register.getRegistry()Lnet/minecraftforge/fml/common/registry/IForgeRegistry;


Reporte:

at net.minecraft.launchwrapper.Launch.main(Launch.java:28) 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 threadStacktrace: at cavern.core.Cavern.registerBlocks(Cavern.java:120) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_4_Cavern_registerBlocks_Register.invoke(.dynamic) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:143) at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179) at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:721) at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:605) at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:266) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:466)
— Initialization –Details:Stacktrace: at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:377) at net.minecraft.client.main.Main.main(SourceFile:123) 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:483) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
— System Details –Details: Minecraft Version: 1.12 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.8.0_25, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 173574608 bytes (165 MB) / 328339456 bytes (313 MB) up to 1060372480 bytes (1011 MB) JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP 9.40 Powered by Forge 14.21.1.2443 8 mods loaded, 8 mods active States: ‘U’ = Unloaded ‘L’ = Loaded ‘C’ = Constructed ‘H’ = Pre-initialized ‘I’ = Initialized ‘J’ = Post-initialized ‘A’ = Available ‘D’ = Disabled ‘E’ = Errored UCH minecraft{1.12} [Minecraft] (minecraft.jar)  UCH mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)  UCH FML{8.0.99.99} [Forge Mod Loader] (forge-1.12-14.21.1.2443.jar)  UCH forge{14.21.1.2443} [Minecraft Forge] (forge-1.12-14.21.1.2443.jar)  UCE cavern{1.8.0} [Cavern] (Cavern-Mod-1.12.jar)  UCH radixcore{1.12-2.3.0} [RadixCore] (RadixCore-1.12-2.2.0-universal.jar)  UCH mca{1.12-5.3.0} [Minecraft Comes Alive] (MCA-1.12-5.3.0-universal.jar)  UCH xaerominimap{1.13} [Xaero’s Minimap] (Xaeros-Minimap-Mod-1.12.jar)  Loaded coremods (and transformers):  GL info: ‘ Vendor: ‘NVIDIA Corporation’ Version: ‘4.5.0 NVIDIA 372.70’ Renderer: ‘GeForce GTX 950/PCIe/SSE2’ Launched Version: 1.12-forge1.12-14.21.1.2443 LWJGL: 2.9.4 OpenGL: GeForce GTX 950/PCIe/SSE2 GL version 4.5.0 NVIDIA 372.70, 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: