My domain is: kamailio.gcel-legc.ca
I ran this command: sudo certbot --apache -d kamailio.gcel-legc.ca
It produced this output:
My web server is (include version): Apache2
The operating system my web server runs on is (include version): Ubuntu 18.04
I can login to a root shell on my machine (yes or no, or I don't know): No
I'm using a control panel to manage my site (no, or provide the name and version of the control panel):
The version of my client is (e.g. output of certbot --version
or certbot-auto --version
if you're using Certbot): certbot
It's possible it is a firewall issue but we have checked the rules and everything seems okay.