Well, I don't have bibliocraft, and there's nothing in the world...
I've retried to make a server and this time it gave me this as a crash report:
---- Minecraft Crash Report ----// You're mean. Time: 23/12/13 5:09 PM
Description: Exception in server tick loop
cpw.mods.fml.common.MissingModsException
at cpw.mods.fml.common.Loader.sortModList(Loader.java:228)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:491)
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)