Once I restart after initial installation, will no longer run.

So, I am running 10.10.2 - MacBook Pro from Late 2014 13 inch. After installation of this product, and after I restart one time, the app will no longer launch: THIS FORCES ME TO UNINSTALL THE APP AND INSTALL IT AGAIN. I’m mad. I paid money for this. Next!

iLeopard about Dropzone 3