It all started yesterday, i was going to work and as always, i listen offline to my playlist that i downloaded months ago. And when i select the playlist, the green arrow is there but the songs show up dark. And i got a notification saying “this song was not downloaded. Do you want to become online to download?” And this happens with every darn music!! Or it says that i need to go online to confirm i’m a premium member. When i turn the 4G or Wi-fi on, the songs were all downloaded and it plays normally. But i want to listen offline without consuming Internet!!! 

Can someone help me? 

I reinstalled the app, my phone and the problem remains. 

This shouldn’t happen with premium