Crash Report

---- Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.

Time: 1/17/16 6:11 PM
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/WorldClient
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
	at java.lang.Class.getConstructor0(Class.java:3075)
	at java.lang.Class.newInstance(Class.java:412)
	at cpw.mods.fml.common.network.NetworkModHandler.tryCreatingPacketHandler(NetworkModHandler.java:195)
	at cpw.mods.fml.common.network.NetworkModHandler.configureNetworkMod(NetworkModHandler.java:133)
	at cpw.mods.fml.common.network.NetworkModHandler.<init>(NetworkModHandler.java:102)
	at cpw.mods.fml.common.network.FMLNetworkHandler.registerNetworkMod(FMLNetworkHandler.java:263)
	at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:519)
	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
	at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
	at com.google.common.eventbus.EventBus.post(EventBus.java:267)
	at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:201)
	at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:181)
	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 com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
	at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
	at com.google.common.eventbus.EventBus.post(EventBus.java:267)
	at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:112)
	at cpw.mods.fml.common.Loader.loadMods(Loader.java:511)
	at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:99)
	at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:350)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:69)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:445)
	at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.multiplayer.WorldClient
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 35 more
Caused by: java.lang.RuntimeException: Attempted to load class bdd for invalid side SERVER
	at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50)
	at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:274)
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:172)
	... 37 more


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

-- System Details --
Details:
	Minecraft Version: 1.6.4
	Operating System: Linux (amd64) version 3.14.32-xxxx-grs-ipv6-64
	Java Version: 1.8.0_65, Oracle Corporation
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 7376594560 bytes (7034 MB) / 9261023232 bytes (8832 MB) up to 9261023232 bytes (8832 MB)
	JVM Flags: 2 total; -Xmx9216M -Xms9216M
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Suspicious classes: FML and Forge are installed
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP v8.11 FML v6.4.50.1,345 Minecraft Forge 9.11.1.1345 51 mods loaded, 51 mods active
	mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed
	FML{6.4.50.1,345} [Forge Mod Loader] (custom.jar) Unloaded->Constructed
	Forge{9.11.1.1345} [Minecraft Forge] (custom.jar) Unloaded->Constructed
	CodeChickenCore{0.9.0.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed
	TConstruct-Preloader{0.0.1} [Tinkers Corestruct] (minecraft.jar) Unloaded->Constructed
	Tropicraft-Coremods{v5.1} [Tropicraft Coremods] (minecraft.jar) Unloaded->Constructed
	threadedlighting{0.1} [Threaded Lighting] (minecraft.jar) Unloaded->Constructed
	OpenModsCore{@VERSION@} [OpenModsCore] (minecraft.jar) Unloaded->Constructed
	lionking{v1.13 for Minecraft 1.6.4} [The Lion King Mod] ([1.6.4] The Lion King Mod v1.13.zip) Unloaded->Constructed
	Aether II{Alpha 1.6.4-4.0} [Aether II] (aether.jar) Unloaded->Constructed
	antiqueatlas{3.1.1-1.6.4} [Antique Atlas] (antiqueatlas-3.1.1-1.6.4.jar) Unloaded->Constructed
	Autoutils{1.0.1} [Autoutils] (autoutils-1.6.4-1.0.1.jar) Unloaded->Constructed
	BattleTowers{1.4.2} [Battle Towers] (BattleTowers_1.6.4.zip) Unloaded->Constructed
	Thaumcraft{4.1.0g} [Thaumcraft] (Thaumcraft4.1.0g.zip) Unloaded->Constructed
	betterstorage{0.7.3.38} [BetterStorage] (Better-Storage-Mod-1.6.4.zip) Unloaded->Constructed
	BiblioCraft{1.5.5} [BiblioCraft] (BiblioCraft[v1.5.5].zip) Unloaded->Constructed
	Natura{2.1.14} [Natura] (Natura_mc1.6.X_2.1.14.jar) Unloaded->Constructed
	BiomesOPlenty{1.2.1} [Biomes O' Plenty] (BiomesOPlenty-1.6.4-1.2.1.434-universal.jar) Unloaded->Constructed
	BiblioWoodsBoP{1.3} [BiblioWoods Biomes O'Plenty Edition] (BiblioWoods[BiomesOPlenty][v1.3].zip) Unloaded->Constructed
	ExtrabiomesXL{3.15.8} [ExtrabiomesXL] (ExtrabiomesXL-1.6.4-3.15.9.jar) Unloaded->Constructed
	BiblioWoodsEBXL{1.1} [BiblioWoods ExtraBiomesXL Edition] (BiblioWoods[ExtraBiomesXL][v1.1].zip) Unloaded->Constructed
	BiblioWoodsNatura{1.1} [BiblioWoods Natura Edition] (BiblioWoods[Natura][v1.1].zip) Unloaded->Constructed
	AWWayofTime{v0.5.1} [Blood Magic: Alchemical Wizardry] (BloodMagicMod1.6.4.zip) Unloaded->Constructed
	Botania{beta-16} [Botania] (Botania beta-16.jar) Unloaded->Constructed
	CarpentersBlocks{3.2.8.6} [Carpenter's Blocks] (Carpenter's Blocks v3.2.8.6 - MC 1.6.4.jar) Unloaded->Constructed
	Chisel{1.5.0} [Chisel] (chisel-1.6.4-1.5.0.jar) Unloaded->Constructed
	ConfigMod{v1.0} [Extended Mod Config] (ConfigMod for MC v1.6.4.zip) Unloaded->Constructed
	CoroAI{v1.0} [CoroAI] (CoroAI for MC v1.6.4.zip) Unloaded->Constructed
	MoCreatures{6.1.0} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v6.1.0.zip) Unloaded->Constructed
	EnhancedCore{1.1.3} [EnhancedCore] (enhancedcore_1.1.3.jar) Unloaded->Constructed
	EP2{1.0.9} [EnhancedPortals 2] (enhancedportals-2_1.0.9.jar) Unloaded->Constructed
	Hats{2.0.2} [Hats] (files^Hats2.0.2.zip) Unloaded->Constructed
	ganyssurface{1.6.0} [Gany's Surface] (Ganys Surface v1.6.0.jar) Unloaded->Constructed
	GraveStone{2.8.3} [GraveStone] (GraveStone_2.8.3.zip) Unloaded->Constructed
	IronChest{5.4.1.702} [Iron Chest] (ironchest-1.6.4-5.4.1.702-universal.zip) Unloaded->Constructed
	BuildMod{v1.0} [Build Mod] (ModBuild for MC v1.6.4.zip) Unloaded->Constructed
	Morph{0.7.2} [Morph] (Morph-Beta-0.7.2.zip) Unloaded->Constructed
	OpenMods{0.5.1} [OpenMods] (OpenModsLib-0.5.1.jar) Unloaded->Constructed
	OpenBlocks{1.2.9} [OpenBlocks] (OpenBlocks-1.2.9.jar) Unloaded->Constructed
	Railcraft{8.4.0.0} [Railcraft] (Railcraft_1.6.4-8.4.0.0.jar) Unloaded->Constructed
	Roguelike{1.3.3} [Roguelike Dungeons] (roguelike-v1.3.3-forge-1.6.4.zip) Unloaded->Constructed
	RopesPlus{1.5.4} [Ropes+] (RopePlus_1.6.4.zip) Unloaded->Constructed
	secretroomsmod{4.6.2} [The SecretRoomsMod] (SecretRoomsMod-universal-1.6.4-4.6.2.319.jar) Unloaded->Constructed
	TConstruct{1.6.X_1.5.5.7} [Tinkers' Construct] (TConstruct_mc1.6.4_1.5.5.7.jar) Unloaded->Constructed
	tropicraftmod{v5.1 for MC 1.6.4} [Tropicraft] (Tropicraft for MC v 1.6.4.jar) Unloaded
	volleyballmod{v5.1 for MC 1.6.4} [Volleyball] (Tropicraft for MC v 1.6.4.jar) Unloaded
	TwilightForest{1.20.4} [The Twilight Forest] (twilightforest-1.6.4-1.20.4.jar) Unloaded
	iChunUtil{2.4.0} [iChunUtil] (util^iChunUtil2.4.0.zip) Unloaded
	AIBlock{v1.0} [AIBlock] (Weather v1.59 Mod for MC v1.6.4.zip) Unloaded
	WeatherMod{1.58} [Weather and Tornadoes] (Weather v1.59 Mod for MC v1.6.4.zip) Unloaded
	witchery{0.20.5} [Witchery] (witchery-1.6.4-0.20.5.zip) Unloaded
	TConstruct Environment: Sane and ready for action. Bugs may be reported.
	Profiler Position: N/A (disabled)
	Is Modded: Definitely; Server brand changed to 'fml,forge'
	Type: Dedicated Server (map_server.txt)