Error while retrieving user playlists

Hi! For a couple of days and only for some users, we are getting this error message on this endpoint: https://api.music.apple.com/v1/me/library/playlists?limit=100

{"id":"6NT5LBXIZW65K2G3L6QY3WWYAA","title":"Upstream Service Error","detail":"Error fetching library content","status":"500","code":"50001"}

Any idea?