I can see you are using the old version of the theme, first of all, please update your theme and plugins to the very latest version.
And then try to check, if the issue will persist, then, please try to disable all the third-party plugins (including cache plugins), that does not come bundled with XStore https://xstore.helpscoutdocs.com/article/36-included-plugins , clear the cache of the browser, and check then. Maybe one of the additional plugins is a reason for the problem.
And if the issue will still persist then please remain all the third-party plugins deactivated on your site and provide me the permission to debug your site which includes deactivating all the third-party plugins and on-site Customization as well.
Note: First of all, please take the complete backup of your site.
Regards 8Themes Team.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.