I cannot get this app to work at all.

It crashes on start up. I’m on a Mac Pro 2.66 GHz Quad-Core Intel Xeon, running OS X El Capitan 10.11.2 (15C50) I downloaded it from the app store. Based on the requirements listed here, my computer is suitable for the app. Why can’t I get it to work? If anyone else has the same experience and/or has a work around, please let me know. THANK YOU

LWinston about Tweak and Tuneup