Help Me I can No Longer play tekkit

[happicreeper1]

When I launch tekkit it goes to mojang screen the say not responding then reverts to technic launcher

[DicheBach]

I'm just a fledgling IT guy, and I don't have the expertise to actually help you troubleshoot problems with this game/mod pack. But I'm guessing anyone who would have the knowledge to help you, if they did not just ignore your post completely, would say "Need more details:" What platform/OS, what changes have recently been made to your system, did the application work previously, have you tried uninstalling the Technic launcher and mods and Minecraft and reinstalling, has something changed with your Java install, when is the last time you successfully used Tekkit, do other mods in the Technic pack work, etc., etc.