Not secure when I log into virtualmin

Virtualmin
1
SYSTEM INFORMATION
OS type and version Debian Linux 13
Webmin version 2.653
Virtualmin version 8.1.0 Professional
Webserver version REQUIRED
Related packages SUGGESTED

When I log into virtualmin I see the Not Secure Https crossed out how can I make that secure

Keith

2

Login with a domain name rather than an ip address or hostname, this assumes you have created a domain and requested a ssl certificate for it