For existing customers, visit your website’s control panel to activate a free Let's Encrypt security certificate to your domain. You can also force all “http” requests to be redirected to “https”, but please check your web site compatibility to make sure that all components used on your web site can run under https.
Paid certificates are installed by enavn: https://enavn.dk/cart.php?gid=21
SEE HOW TO ACTIVATE LEt'S ENCRYPT SSL BELOW:
Log on to your eControlPanel and click the pane Sites -> Website. Click on your website in the list on the right.
Then activate Let's Encrypt (SSL) in the settings for your website - see image below:
Next we need to click the Redirect pane at the top:
The last step is to rewrite to SSL/HTTPS for your website, meaning the individual pages correctly encrypt the traffic:
Remember to click on the green Save button when done.