How to remove 'dead' devices from Apple Home?

MacBook Pro 16", Nov. 2023, macOS = Tahoe26.3

I'm using Apple Home. There are several devices which are "dead", that is, they don't exist any more in reality but are still there in Apple Home. Maybe because I renamed them in the past or placed them in another room.

How can I remove these "dead" devices? They appear in menu "Problems". And yes, he can't count correctly. He counts 9 problems but shows only 8.

Many thanks in advance for your support!