Hello,
The problem is caused by incorrect HTTP and HTTPS configuration: https://domain.com is the actual site URL, however, http://domain.com is used in Dashboard > Settings > General. In this case, it is necessary to configure URLs correctly.
I have updated the theme, as soon as you fix the URL configuration, the Theme settings would come into force.
One more point: I have activated the plugins related to the theme only. As for the other plugins, please update them, and activate them one by one checking the site.
If you have any questions please feel free to contact us.
Best Regards