Hello @lazar96 , I hope you are doing well today!
I can’t replicate the same on my installation with SSL. Do you see any errors
Would you please try to force SSL from the .htacces file, if the SSL is not forced already, add the code bellow to the .htaccess file:
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://yourdomain.com/$1 [R=301,L]
If your site is in a subfolder, use this code:
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteCond %{REQUEST_URI} folder
RewriteRule ^(.*)$ https://yourdomain.com/folder/$1 [R=301,L]
If you are already forcing SSL on your site, please let me know how you’re forcing it; with a plugin or through the wp-config.php file?
Also please check the PopUp item settings, id you are using “On A Specific URL” condition and the URL point to HTTP, it will not work.
Let us know how it went!
Cheers,
Nastia