Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: demoflorida.com
I ran this command: certbot --apache
It produced this output: Client with the currently selected authenticator does not support any combination of challenges that will satisfy the CA.
My web server is (include version): Debian 8 + backports, it is a virtual machine
The operating system my web server runs on is (include version): CentOS unknown version
My hosting provider, if applicable, is: network x
I can login to a root shell on my machine (yes or no, or I don’t know): Yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): none