xXLeafKittenXx

Hmm, That's a strange crash report, it doesn't point directly to any mod or item id. It looks like you using Mac, I wonder if that's the problem... Probably not, but I'll try removing a certain mod which I don;t use anyways and see if that helps. It should be update 2.7.

Ok, so I posted your crash on the forums, and people say to update your Java to 7 or 8, so try that if you can figure out how to update it.