That might happen if your changed the iTunes Store region.
Settings > Apple ID > iTunes & App Store > Apple ID > View Apple ID > Country/Region
That might happen if your changed the iTunes Store region.
Settings > Apple ID > iTunes & App Store > Apple ID > View Apple ID > Country/Region
That might happen if your changed the iTunes Store region.
Settings > Apple ID > iTunes & App Store > Apple ID > View Apple ID > Country/Region
Try signing out of your Apple ID and then sign in again. Apple Music downloaded for offline use may be removed from the device.
tt2
Apple ID invalid