WordPress Visual Composer

Hi Someone is helping me build a website using a visual composer. But i realized it has become worse . I cant even see how to edit, and it is very difficult to edit. But i dont want him to have to redo the entire site. Are you able to help me make the site easily editable and provide documentation on what was done wrongly and how you correct it. You can see : [login to view URL] The site is working fine. Just that the cms is almost useless so every changes have to be through the designer. Let me know if this is something u can fix and the cost. I assume this is a simple task. You need to be very familiar with visual composer