Hello,
Thank you very much for choosing our theme and for contacting us.
Please try to resave Permalinks in the Dashboard > Settings > Permalink.
Also please check and make sure: HTTP and HTTPS configuration in the Dashboard > Settings > General if your domain is https://domain.com the same should be used in Dashboard > Settings > General.
If the problem remains, please provide your site admin access to the private area.
Please confirm the permit for us to deactivate the plugins not related to the theme and switch to the parent theme for the while of checking what may take up to 15 minutes. Please make the full backup of your site.
Best Regards