Failed to group domains for renewal

I hope this is right category to post in. I keep getting this email:


A critical error was encountered during the Let’s Encrypt SSL renewal process.

Account: "mine"
Action: Failed to group domains for renewal
Error: Invalid domain specified:


This is a Wordpress multiuser installation, and it’s on auto-renewal. I recently un-mapped one of the domains. ( The site is still there, but as “”, instead of

I’m guessing that is what is causing the problem. Do I need to start over with a new cert? Or do I need to totally delete the site in question?

Oh! I also have 2 other sites on there that aren’t mapped, but I think they were already there like that when I first got the cert.


The easiest way is to obtain a new cert, with the domains you want on it.

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