I get this crash:
---- Minecraft Crash Report ----
// Sorry :(
Time: 28.08.14 23:49
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)...