Problem with UNKN - Item not found in agent output

I have a host -> “service_kubernetes_dashboard”.

For a few days now, the service “Port 80” has been flapping, between OK and UNKN. I would like to remove the whole host because I don’t need it (DELETE HOST). Unfortunately, after deleting the host appears again after few minutes.

Apparently there is a periodical discovery somewhere or so, but this option is deactivated.

Check the screenshots.

Can you help me here?

Br
Mili