Hello, @anand,
Thank you for using our theme and for contacting us.
Please record a video of the problem for a better understanding. Upload it on a filesharing service, for example – https://wetransfer.com/ , and provide us with URL.
Furthermore, we would appreciate it if you could create temporary wp-admin access and share the details via the private content area. This will allow us to review your settings and better understand the issue at hand.
We kindly recommend that you take a complete backup of your site before proceeding.
Warm regards,
The 8Theme Team