I have a Galaxy S7, and lately my Spotify app has been acting up. Every once in a while the entire app itself will freeze, but it'll still be playing music. The pull-down from the notification bar will display whatever song was on previously, and I can't skip or pause the song. Trying to swipe the bar away doesn't work either. If I try to open up the app, all I get is a black screen. Closing out the app doesn't do anything. The music still plays and the pull-down is still there. The only way to make it stop is by restarting my phone. I'm not sure why it's doing this or how to fix it. Help??