My domain is: jeansibelius.net (nextcloud.jeansibelius.net for my website)
I ran this command: sudo certbot renew
It produced this output:
aving debug log to /var/log/letsencrypt/letsencrypt.log
Processing /etc/letsencrypt/renewal/nextcloud.jeansibelius.net.conf
Renewing an existing certificate for nextcloud.jeansibelius.net
Certbot failed to authenticate some domains (authenticator: apache). The Certificate Authority reported these problems:
Domain: nextcloud.jeansibelius.net
Type: connection
Detail: 109.232.28.134: Fetching http://nextcloud.jeansibelius.net/.well-known/acme-challenge/graXJO8B7y0OSLlWTlFVnFysITdKLq8ng44Ce45m5Vw: Connection refused
Hint: The Certificate Authority failed to verify the temporary Apache configuration changes made by Certbot. Ensure that the listed domains point to this Apache server and that it is accessible from the internet.
Failed to renew certificate nextcloud.jeansibelius.net with error: Some challenges have failed.
All renewals failed. The following certificates could not be renewed:
/etc/letsencrypt/live/nextcloud.jeansibelius.net/fullchain.pem (failure)
1 renew failure(s), 0 parse failure(s)
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.
My web server is (include version): Apache 2.4.62
The operating system my web server runs on is (include version): Debian 12
My hosting provider, if applicable, is: Cloudflare
I can login to a root shell on my machine (yes or no, or I don't know): yes
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): 2.11.0