Not working as intended? – Gravitarium Live - Music Visualizer + Review

I had the free version of this and loved it so I paid the $3.99 to be able to play with it to my own music. However whenever I try to open iTunes the screen just goes black, so the paid version isn’t any better than the free version. It would definitely be 5 stars if I could play with it to my music library. . . Or better yet, Spotify.
Review by Aspartame4a on Gravitarium Live - Music Visualizer +.