Apple Music isn’t syncing

I recently logged into another account with another region, and then I log in to mine again and go to Apple Music, my library is empty. I have a subscription and it's active, I try to synchronize the music back, but it doesn't go further than in my screenshot, on my Windows when trying to synchronize, it gives an error 4007 but the internet connection works good. How can I get my library back?

[Edited by Moderator]