Cannot save a song

[gokturkozan]

Plan

Premium

Device

Samsung Galaxy Note 8

My Question or Issue

 Hi, cannot save songs into my library. Read about the 10k limit though I haven't recieved any notification that I reached it. Tried removing songs so that I can add new ones. I even couldn't remove songs. I have tons of storage and no problem with data/wifi. Spotify just picks time when it wants to save or not to save new songs to library. Some songs I tried saving yesterday and not successful, I saved them today without a problem. And now, for example, trying to save numb by linkin park, but not happening? What's wrong here?