How to eliminate this?

I always get this strange persistent notification:

Schermata 2023-07-08 alle 14.39.58

What does it means and how to eliminate?

I means your Sonos device has not been correctly set up.

Hmm… the sonos devices are correctly configured and work as expected. I cannot see anything in logs…
I reloaded the sonos integration, but the notification is still there!