Hello, @Siva,
Please try to disable all the third-party plugins (including cache plugins), that do 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 the reason for the problem.
And if the issue will still persist then please remain all the third-party plugins deactivated on your site and allow permission to debug your site which includes deactivating all the third-party plugins and on-site Customization as well so that I will check and assist you accordingly.
Note: Please take the complete backup of your site first.
Also, I can see you have the cache on your site from the server (CDN), I suggest you to please flush it completely and all the other cache as well and disable them for a while till you are in the development process and also remove your site cache as well and then check back.
Regards 8Themes Team.