HELP

(This Problem applies to Booking Revolution and Popscene as well)

Ive been playing this game for along time. I have the IPhone 6 with version 8.4. I decided to buy most of wrestlers theme songs so that they would walk to the ring with correct theme. However whenever I press the MP3 button it does not go to the music menu so I can select my song. Ive deleted and redownloaded the app multiple times but it did not fix the problem. Please fix

Celticy534 about Wrestling Revolution Pro, v1.77