It seems to be the Multiple Header condition issue, please check it under XStore >> Theme Settings >> Header Builder >> Multiple Header: https://postimg.cc/F7WHkJry
If still you will not able to solve it then please share your site WP Admin URL and Credentials with me in a private content area of this topic, so that I’ll check and help you out.
Regards 8Themes Team.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.