As of today (nov 26th 8.45AM GMT) the authorization page auth.mopidy.com/spotify is not working…
In addition, I have continuous failings from spotify:
Nov 26 09:20:44 pab mopidy[426]: INFO Failed to lookup "spotify:track:0tByDZgQzoNfFFmpgleB0s": S
ession must be logged in and online to load objects: <ConnectionState.LOGGED_OUT: 0>
Internet line is working and I can use spotify from its own app.