Oakrin

Whenever I start up my Server it crashes when the world loads. Crash Report; ---- Minecraft Crash Report ---- // Hi. I'm Minecraft, and I'm a crashaholic. Time: 3/4/14 12:33 PM Description: Exception in server tick loop cpw.mods.fml.common.DuplicateModsFoundException at cpw.mods.fml.common.Loader.identifyDuplicates(Loader.java:396) at cpw.mods.fml.common.Loader.identifyMods(Loader.java:354) at cpw.mods.fml.common.Loader.loadMods(Loader.java:484) 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)