My Spotify either only plays the songs briefly (8-10 seconds) or doesn't play them at all. I have Spotify Premium and also the latest version. It works on my laptop, where I logged on to the same account, but it no longer works on my mobile phone. (Logging in and out didn't help either.) What else can I do to fix the problem?
From the tag "Apple" I conclude that you have a MacBook / MacBook Air / MacBook Pro.
Therefore it is best to turn to the https://support.spotify.com/de/ and that of https://support.apple.com/....com/de-de.
If you get stuck there, you can https://support.spotify.com/de/article / cancel-premium / cancel the subscription.