When I run "certbot certificates" on my Ubuntu server, it says that I have two certificates. One of them covers all my sites and the second one covers a subset of those sites. I don't understand how I got into this situation, but as far as I can see, the second certificate is absolutely pointless.
I tried to remove the second certificate, but that broke my websites, so I restored everything from a backup.
How do I remove the second certificate without breaking my Apache installation?
Thanks for any help.