Hell-Crash

---- Minecraft Crash Report ----
// I blame Dinnerbone.

Time: 12/21/15 3:12 PM
Description: Exception in server tick loop

java.lang.ClassCastException: net.minecraft.world.biome.WorldChunkManagerHell cannot be cast to rtg.world.biome.WorldChunkManagerRTG
	at rtg.world.gen.ChunkProviderRTG.<init>(ChunkProviderRTG.java:95)
	at rtg.world.WorldTypeRTG.getChunkGenerator(WorldTypeRTG.java:33)
	at net.minecraft.world.WorldProvider.func_76555_c(WorldProvider.java:66)
	at net.minecraft.world.WorldServer.func_72970_h(WorldServer.java:654)
	at net.minecraft.world.World.<init>(World.java:245)
	at net.minecraft.world.WorldServer.<init>(WorldServer.java:97)
	at net.minecraft.world.WorldServerMulti.<init>(WorldServerMulti.java:14)
	at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:222)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:258)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)


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

-- System Details --
Details:
	Minecraft Version: 1.7.10
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.8.0_40, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 511200344 bytes (487 MB) / 2076049408 bytes (1979 MB) up to 4151836672 bytes (3959 MB)
	JVM Flags: 9 total; -Xms2048m -Xmx4096M -XX:PermSize=256m -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=2 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1558 11 mods loaded, 11 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UCHIJAA	mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
	UCHIJAA	FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1558-1.7.10-universal.jar)
	UCHIJAA	Forge{10.13.4.1558} [Minecraft Forge] (forge-1.7.10-10.13.4.1558-1.7.10-universal.jar)
	UCHIJAA	CodeChickenCore{1.0.4.29} [CodeChicken Core] (minecraft.jar)
	UCHIJAA	NotEnoughItems{1.0.3.74} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.3.74-universal.jar)
	UCHIJAA	act{0.0.2a_1.7.10} [AdminCommandsToolbox] (AdminCommandsToolbox-0.0.2a_1.7.10.jar)
	UCHIJAA	BiomesOPlenty{2.1.0} [Biomes O' Plenty] (BiomesOPlenty-1.7.10-2.1.0.1521-universal.jar)
	UCHIJAA	BNBGamingLib{2.3.2} [BNBGamingLib] (BNBGamingLib-2.3.2.jar)
	UCHIJAA	DimensionalControl{1.4.1} [DimensionalControl] (DimensionalControl-1.4.1.jar)
	UCHIJAA	Dynmap{2.2-143} [Dynmap] (Dynmap-2.2-forge-1.7.10.jar)
	UCHIJAA	RTG{0.3.0} [Realistic Terrain Generation] (RTG-1.7.10-0.3.0.jar)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 0 / 20; []
	Is Modded: Definitely; Server brand changed to 'fml,forge'
	Type: Dedicated Server (map_server.txt)