It looks like output got a little corrupted; does it look the same to you here on the forum as what you saw in the terminal output, or did something go wrong when trying to copy and paste it?
Do you remember what command or method you originally used to obtain this certificate? Have you made any changes in the network configuration since you obtained it, like shutting down a web service or adding a firewall rule? It does look to me like these servers aren’t accepting port 80 connections from the Internet, which would be necessary for the http-01 challenge method.