Missing songs from the records.

I am, simply put, furious. I am an unregistered user (which means I've joined this app before September 2022). I have the premium version for more than two years already, and day by day the bugs get heavier. Many songs that I've listened to suddenly disappeared from the records. They WERE there before. At first, it was only a single song. I have a whole album missing as I write this. Fix those issues once and for good. Put this app on longer maintaince - whatever it takes for the experience of using this app being enjoyable like it used to be .