Custom domain taken by project that has been deleted

Hey folks. I've joined the Appwrite platform a long time ago. At some point in time I think I created a project and associated a custom domain appwrite.claymemoirs.com with a project. In the mean time, I've probably deleted or renamed that project, but none of my three existing projects currently uses that custom domain name. I'm trying to add that custom domain (appwrite.claymemoirs.com) to my current "production" project called Claymemoirs-Production, but whenever I try to do it, I get an error saying that it was already associated with an existing project. That's not really possible at least not from what I see on my dashboard. Furthermore, I'm the owner of the claymemoirs.com domain.

The same happened when I tried to link Claymemoirs-Staging to appwrite.staging.claymemoirs.com, but on this one I was able to work around the issue by setting appwrite.stg.claymemoirs.com as a custom domain.

Can you please advise?