Why does that appears?

I am tired of this, I don't even know what to do at this point, not even a single developer reply my messages, every time I try to play a song an error appears and it says ""The Song" can't be played because you are not signed up in apple music, sign in to play music." I have to uninstall the app and install it again so I can play music only for 1 day, also I have to unauthorize and authorize my device and it takes way too long to play only 1 song