thanks a lot for reply Jürgen,
now that you’re saying it about the vHosts, I just had re-directed name-server-addresses for uptoconcept.com, which is at Dreamhost, to now AWS Amazon.
Before, on Dreamhost I was pointing A Record to 1und1.de server.
Maybe that caused it.
So what do i do now ?, do i enter a new email address to install a new LetsEncrypt certificate for onefh.com etc. in Plesk ?
I'm not familiar with the Plesk interface but I'd guess you probably just need to click Install here.
That, on the other hand, looks like the form you would fill in if, instead of using Let's Encrypt, you wanted to purchase a certificate from a traditional commercial CA. If you did both, perhaps the latter might have overridden the former?
Hmm, sure enough, you’ve exceeded a rate limit (though not the one Plesk thinks you have). That shouldn’t happen but I don’t know what caused it, sorry It sort of sounds like Plesk is successfully obtaining certificates for you, but not applying them to your site for some reason. Maybe Plesk support can help you?