The following website is a step by step method of putting the SSL server certificate files in your website and then setting up the domain:

https://www.geocerts.com/install/cpanel_11

From the looks and current state of our website, we need to add the option so that we can use the “Setup a SSL certificate to work with your site” option within SSL/TLS Manager. It also appears as though one requires a Certificate that we must either make ourselves our obtain.