seems not installing Virtualmin through install.sh isn’t the best of choices
Indeed
If you have any suggestions on how to clarify what the best installation manner is, please let us know… however, so far as I can tell, the docs and links available on the site here go pretty far to recommend using the install.sh
But, that may only be part of the issue – some of the things you’re running into can’t be handled by the installer.
I did the same procedure for all domains in the server (about 17), so I don’t get the problem with these.
After looking into the DNS for those domains, I’m guessing which ones work and not may just be intermittent
You can use websites such as intodns.com to check your DNS settings.
Plugging some of your domains into it, it looks like one of your nameservers may not be working.
That seems to be a big part of the issue – r25074.ovh.net doesn’t respond to any queries I do.
However, I’d recommend putting all your domains into it, and resolving any errors it reports.