How to delete a site without having the server redirect to a different one afterwards

When I delete a site on my server, it redirects a visitor to a different site stored on my server. In my case this is especially inconvenient as this site is an admin login page. How do I get it to just serve „nothing“ after a deletion instead of redirecting visitors to a „randomly chosen“ different site?

Has somebody here dealt with this too?
Best regards

There is a catch all that should return a 444 error instead of a different site on the server. What url is this happening with?

I made an example site here which is now deleted in Cleavr and redirects:

Thanks, the link helps! I think I found the issue; we’ll need to put in an update for this.