Black Screen on Mac

When I start rekordbox it tells me my subscription is ending in a few days then i click ok. Starts as normal but I get nothing but a black screen. There is a split screen box at the bottom of the black screen and the tabs, file etc are at the top but nothing else. I have uninstalled and reinstalled but exactly the same thing happens. I am pulling my hair out. I need to update my sticks and can't get to my music