Hello,
Thanks for using our theme.
Install Default demo version, like shown in this video – https://youtu.be/UAlAkvoilfk , > go to Pages > Add new > import home-banners page – https://youtu.be/wkIKN2IyEZI , then Dashboard > Settings > Reading > Your homepage displays > select the Imported Home page.
As you can see on the demo this page uses a specific header, that was achieved via Multiple headers functionality. Just provide temporary wp-admin access, so we can import the header manually on your site and set it for the Home page only.
Regards