Htaccess password protected directory doesn't work with https

My domain is: my.cpacontentplus.com

I ran this command: https://my.cpacontentplus.com

It produced this output: Connection not private

My web server is (include version): Apache 2.2.34

The operating system my web server runs on is (include version): Linux (version not immediately available)

My hosting provider, if applicable, is: A2 Hosting

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): cPanel 68.0 (build 37)