My website doesn't have SSL

Hi,
I have already installed WordPress for my domain in Virtualmin.
Unfortunately, when opening my website, I found it doesn’t have SSL.
In Web Configuration>Configure SSL Website>SSL Options, I found SSL is already saved.
How can I resolve this?
Thanks!

SYSTEM INFORMATION
OS type and version Ubuntu 22
Webmin version 2.111
Virtualmin version 7.20.2
Webserver version REQUIRED
Related packages SUGGESTED

In Virtualmin > Manage Virtual Server, there is a tab with an option to get a free SSL certificate from Let’s Encrypt.

If you use this option, Virtualmin will get a new certificate, apply it to your virtual server / domain and the automatically renew it going forward.

I would also look here


if you have a valid letsencrypt certificate installed look here

and make sure you are redirecting everything to https from http