ddkl360

Recently the technic launcher has not been working for me. Whenever I try to play almost every modpack, it will either simply not start up, or it will enter the fml loading screen and then crash after giving me a fatal fml error message. I have not been able to locate the source of the problem and I need some help with this. Not sure if its relevant, but the only two modpacks that don't seem to have the problem is tekkit classic and yogbox.