I have this crash when i run my minecraft with looking glass :http://pastebin.com/rp9wtVcx i don't use mod just looking glass

Try creating an empty text file at [Minecraft Installation]/logs/proxyworlds.log

In order to actually say anything as to what went wrong I'd need a run log, not a crash report. If you still can replicate this issue, I'd be happy to take a look. :)

i lived same ceash please fix