I’m creating and renewing SSL certificates for a website on HostPresto using the ZeroSSL browser ACME service. Until now it’s been working for almost a year. After the first renewal, all that was needed was reinserting key and CSR and it would produce a new certificate that could be pasted into the dedicated cPanel section. However, now when I do it it doesn’t allow me to install the new certificate, giving me a ‘wrong domain name’ error. Did something change recently? Should I redo the process from zero, regenerating a new CSR?
But the certificate (and all older) have only one domain name. It's better to create one certificate with both domain names - flaviacatenaph.com and www.flaviacatenaph.com.
And you don't use the newest certificate. Instead, there is the old certificate:
CN=www.flaviacatenaph.com
12.05.2018
10.08.2018
394 days expired www.flaviacatenaph.com - 1 entry
So first step: Create a CSR with both domain names, then a certificate with both domain names. Then try to install that certificate.