Search Console Spam Attack?

I received a Google Search Console email and notification telling me there is a new owner for a subdomain of my website that was deleted 6 months ago it was basically

It was deleted and I moved to a new host. That subdomain was never in Search Console, and it isn’t in there now. I also don’t see the new owner in Search Console (some random gmail address) either.

I did find that there’s an A Record for in Cloudflare. When I go to the IP address for it, I get a CPANEL “Sorry!” page, with a couple of broken images on it. Should I just delete this A Record since it doesn’t look like it’s being used?

I’m also changing my cloudflare password. Thanks!