modpack server crashing on world startup

[swmyprod]

The title pretty much says it all. I'm not really sure whats causing it, I've removed all client side mods as far as i can tell.
I'd be more than glad to provide anyone with a list of the mods I have currently in my server mods folder or anything else that might help.
here is my world log: http://pastebin.com/DNHfBQqa

[TerdyTheTerd]

One of the mods is attempting to call something that isn't there "java.lang.NoSuchMethodError: Config.getGameSettings()Lnet/minecraft/client/settings/GameSettings;" That most likely means the mod requires another mod to run properly, one of the mods it requires got updated and changed some of its code around or you are using an improper mod version for your version of forge/minecraft. A list of mods would be very helpful, and are you using a modpack for this server? Or is it just a collection of mods you put together?