Denon MC3000 Problem

All of a sudden Cross DJ doesn't work with my controller anymore. If I try to duplicate the MC3000 mapping, Cross DJ says it will make a copy of the U-Mix Control. Most of the buttons don't work at all, the crossfader does something completely different like scratching. Deleted the software and reinstalled it again. Controller works as it should with other software. I'm using a MacBook Pro. Any ideas?