GeneralSock

Ok. Thanks for your help.

Is there an easier way of finding out which mod it is?

I have a modded server, running on Ubuntu, for me and one other person. It works perfectly fine when we're in the spawn area, but when we move away the server crashes. In order to stop it crashing we have to quickly teleport back to the spawn area, otherwise it crashes every time we join. Here's my last crash report: http://pastebin.com/yaa4qu7b