If you open creative inventory and begin thumb through pages of inventory, game client will crash.

error log:

http://pastebin.com/HqZ8cxeK

Works for me. Are you on multiplayer or singleplayer? What forge are you using? You cut that part out of the crash report.

Probably not the problem, but I am using forge 1230. Does it crash if you only use DivineRPG without any other mods? Does it crash every time?

forge 1277

This sounds like it's caused by another mod. Even in newer forge builds, I'm not getting this error.

maybe you are right, because before it i played in forge 1230 :) Close it. But it crashe every time :)

Closed until it can be reproduced.