Hello,
Thanks for using our theme and for contacting us.
What exactly changes you did? Could you provide URL of the site and temporary wp-admin access? Use Private Content area – https://prnt.sc/vrp8br
Some our demo versions use Multiple headers, please watch this video – https://youtu.be/BpeXfzNwkOc
Also, you need to enable Elementor for static blocks and products – https://prnt.sc/vrp990
Regards