Serious bug fix in need but I love the service

Ive loved this service for many years now, but some recent bug has caused some irritation. I have an iPhone 6s and it never fails that when I am using the app, some of the songs just wont play unless I close the app and reopen it. Definitely needs to be fixed please. Id be completely satisfied if this problem was fixed.

Jpmrealest about Google Play Music, v3.26.1007