Roysten Suelf Abs

For some reason none of my modpacks will open. They act like they will, the launcher disappears but comes right back. I've set the ram allocation to the full 7 gigs, tried uninstalling and reinstalling minecraft and technic, and I've tried rolling java back to 7 and then returning to 8, nothing seems to work. Any ideas would be useful. Log to follow : http://pastebin.com/pVnutK6R thank you