Adding a song to a playlist isn’t working

The song, Hadouken, by Chief Keef isn’t getting added to my playlist because every time it adds it says that this song is no longer available in your region. When I go to the album 4nem I can play the song. I’m a little sad because I like this song. Also I made a Chief Keef playlist but now almost half of the albums, and 1/3 of the single songs I added from Chief Keef aren’t available in my region. I don’t know why this is happening but i would like to have an explanation even if I’m just being dumb 😭 (edit) When I go to the albums and singles of the songs that aren’t letting me listen to them on a playlist, I can listen to them! Please help bc it’s like 15 hours of my 30 hour playlist 😭😭💀