Music playing

[Morrdani]

My old downloaded music plays but whether I use WiFi or data no new shows play! I click on a song and it says it unavailable and if I'm playing a downloaded Playlist half way through I have to turn my screen back on for the next song to play. I put a Playlist on aND clean my house. But I can't do that anymore. I need help other wise I'm getting rid of the whole thing. Thanks.