Hello Sansar,
It looks like you have a caching plugin active on your website. Kindly make sure that you have fully cleared your site’s cache because there are many instances that some functionalities of the theme doesn’t work because of caching issues.
If the issue persists, try testing for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it’s fixed, you’ll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.
In case you are still getting an issue, please provide us with the admin access to your site in a Secure Note: