TGB crashes on launch OS X

Hello,

TGB is crashing on launch for me suddenly.

The last thing I did, was copy two .png files into a projects Images folder.

I quit TGB, then went to relaunch. Now TGB will not start.

I am told that it quit unexpectedly and given an option to relaunch.

after three of those attempts, I am offered the choice to reset application settings and relaunch, but that hasn't worked either.

I've reset my machine as well, but no luck.

Any help would be greatly appreciated.