Hello, @Jubaer,
Thanks for using our Theme and for contacting us.
The issue you are facing is because you are using the Multiple headers feature on your site, You have used the condition for the multiple headers to show it on your site home page: https://postimg.cc/tsRP4hDx
https://postimg.cc/QBwWmvDQ
I have removed the condition from the Multiple headers >> header1 and now your site home page is working fine: https://postimg.cc/TKSrNKq5
Furthermore, you can watch this video for a better understanding: https://www.youtube.com/watch?v=BpeXfzNwkOc&feature=youtu.be
Regards 8Themes Team.