To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address.
FATAL: all hosts have already failed β aborting
My web server is (include version): nginx
The operating system my web server runs on is (include version): linux
My hosting provider, if applicable, is: cloudfare
I can login to a root shell on my machine (yes or no, or I donβt know): yes
Iβm using a control panel to manage my site (no, or provide the name and version of the control panel): no
The version of my client is (e.g. output of certbot --version or certbot-auto --version if youβre using Certbot):
Looks like you use the integrated Cloudflare solution to have a SSL connection between your server and Cloudflare. Then you don't need an own Letsencrypt certificate.
But if you have a main domain, it's better to have a DNS entry and a correct configured vHost with one certificate and both domain names. And correct redirects.