For the crash, please see my reply in this thread and report back whether it works for you.
The hand issue is caused by OF breaking the forge event which we use to prevent the hand from rendering.
We already have a workaround for that (we are patching OF while it is loading).
The OF version you're using is old, really old, it doesn't even have the shaders mod integrated. Try updating (for shaders we only support the ones integrated into OF since the dedicated mod died somewhere around 1.8).