Please Add Spotify Radio Function to Sonos

[cbokwall]

When starting music from Spotify on my Sonos system, it keeps interrupting, and I get a message that says (translated): "Playing from Spotify was stopped since playing was started from another room, or another unit. Spotify limits the number of simultaneous streams that you can access from its service". The only thing is that I am not using my account anywhere else, and not on any other devices either. What's going on?