I'm trying to get a letsencrypt certificate for a website through ISPConfig. It's failing and what's interesting is that in the email I get to report the error, it includes an additional domain. That is, the reported command line to LE has something along the lines of this: "-domains example1.com -domains www.example1.com -domains example2.com -domains www.example2.com". Where I'm trying to get the certificate for "example1.com" - so that's right - but not for "example2.com". It's, for some reason, picking up this other domain as well. But the thing is that though this additional domain is a domain name that we have used before, it's no longer active. The website is gone. I did hold onto the domain name in the "domains" page of "clients", as we do still own the domain name itself, even though it's not in current use. But I removed the website and there's no DNS entries for it. Yet when I tried to delete this domain name from the domain list - to try to clear it out of ISPConfig, so that it couldn't be wrongly picked up for the LE certificate - then it says that it cannot be deleted, as it's a web domain. But it isn't. The website is not there. There is no entry for it in the "sites" page. There appears to be some kind of "ghost in the machine" of a domain name that was in former use, but not anymore, that I can't seem to clear out. And it's getting in the way of the LE certificate process as, for some weird reason, it's being included in the domains sent to LE. But as there really is no such website and no DNS entries for it then of course LE's servers are rightly denying it - their servers must be trying to access "example2.com" and not getting any response, fail the whole operation. Even though I don't want "example2.com" to be even involved in this. Where is ISPConfig getting the domains and such from in the database? I could always go into PHPMyAdmin and fix things, if I knew where the problem could even be.