Sorry to hear about the inconvenience. Kindly, please share your Site WP-ADMIN Login details in the Private Content field so that we can check this concern on your Site and help you out accordingly.
Please review your website and check the hero section on the home page. I have edited the home page using WPBakery, created a new row, and added the hero section. It is now displaying correctly.
See Screenshot for clarification: https://postimg.cc/7G1mxLx9
Sorry, but this is what I see now. If I try to remove the duplicated section, the initial situation reappears, and the Hero Section gets cut off. The same issue occurs on the page dedicated to the registration form.
Please deactivate all the 3rd party plugins and activate only theme-required plugins on the site and then check the issue after clearing your site cache and server cache. I am sure your issue will be solved.
Then Activate the 3rd party plugins one by one and check which plugin is creating the issue for you.
Otherwise, if the issue still exists then keep the 3rd party plugins deactivated and let me know so I will check and give you a possible solution.