My main playlist disappeared from my phone. Please help

My main playlist, with all my party tunes just randomly vanished from my phone. It was downloaded but then one day it wasn't even in my playlists anymore, not even able to stream it.

What's really weird is I can still access it on the Spotify app on my TV. So when I start playing songs from the playlist on the TV my phone can see it and I can see the playlist. It still says that I made it, can edit it and add collaborators, but I can't download it! The download button just does nothing.

I have the option to 'add playlist to my profile' (I made it, so it should be there already no?) But even when clicking that it still won't then appear in my library.

Anyone know wtf is happening please?