Unsupported system - Unsupported software - no custom


I have a raspberry pi 4 and this is the environment:

Home Assistant 2023.1.7
Supervisor 2022.12.1
Operating System 9.4
Frontend 20230110.0 - latest

Yesterday this warning appeared:

Unsupported system - Unsupported software

System is unsupported because additional software outside the Home Assistant ecosystem has been detected. Use the link to learn more and how to fix this.

But I didn’t install anything new or “custom” to my system, I tried to look around, but I didn’t find anything helpful to understand how to verify this warning and what it is actually wrong.

May I kindly ask for some help on this please?

Thanks a lot!

You have a docker container running which isn’t part of HA (its not Supervisor, one of Supervisor’s plugins, Home Assistant, or an addon). That isn’t supported. HAOS is an appliance install, everything should be managed via HA and there shouldn’t be any containers running which weren’t started by Home Assistant.