I’m having the same problem, except, they keep telling me it’s not the server, that it’s the Let’s Encrypt itself. Now since 2 of our sites on that server failed to install Let’s Encrypt, I went to another SiteGround account that I own. I successfully installed a Let’s Encrypt SSL on a site. Below is the same thing they’ve been telling me for 2 weeks now. My question is: If I can install Let’s Encrypt on my other SG server, wouldn’t it make sense that all servers are making the call to Let’s Encrypt in the cloud or wherever. So logically, since it is a call with the keys being passed to the Let’s Encrypt processor, wouldn’t that be a server problem, not a Let’s Encrypt problem?
"_emphasized text_The issue with thesecondomain.com is the same as the first one. Please note that this is not related to the server but the actual Let’s Encrypt tool. Unfortunately, there is not much we can do at this point. As already advised, our Developers are working on a permanent fix as we speak. I am afraid, though, that we cannot provide you with an ETA as to when this will be resolved.