😎 Check your DNS status
Use DNS Checker to verify that your domain has successfully propagated before adding a site with SSL. This is the cause for most site creation failures as the DNS needs to be propagated to successfully verify the domain points to the correct server during the SSL creation process.
Error code aXNzdWVzc2w is an SSL certificate creation error.
What went wrong?
This error occurs when the Let's Encrypt services is attempting to verify that the domain is pointing to the correct IP and is receiving an invalid response. In other words, it is most likely that the domain is not correctly directing traffic to the server's public IP or that the record has not yet propagated to the verification service that is performing the verification check.
To resolve, verify the 'a' record points to the correct server public IP using DNS Checker and then attempt to re-create the site.