this the issue gist i made with log and mod list etc due to many class conflicts https://gist.github.com/SDUBZ/8a121bddf045e26d7234afb321140f29

test 0.8 version and see whether this issue still exist

0.8 seems to work but hard to tell when one is stopping me joining it but atleast it got to launching world and stuff

Maybe it's a mod compatibility issue. Try to remove half of the mods and try again, until you find which mod it's incompatible with

And show the server log

http://puu.sh/E5m1s/2ccd8cb08e.log