All mp3 music apps not working, please help.

[AC Question]

I have a Galaxy s6, and i cannot download any music anymore using the mp3 apps in the play store. *I can download the apps just fine, but when i go to search for any artist/song, it says no results found. *For every song. *Every artist. *I've tried about 16 different apps, including the ones that used to work for me just fine. *In a couple other forums it said to disable developer options and also to delete any files named .nomedia. *I've done both of these then restarted my device and am still having same issue. *Anyone know whats going on?