Fixing site errors

Hello All,

Not sure if this is where I should post this question, if not please direct me to the correct place.
I use the visual page builder to do this site, first time using a visual builder, now I found that page has errors that need to get fixed up. Would you guys please help, I like to know if there is a way to fix this on the code part, on the dashboard, if I change to default editor there is nothing there, so only shortcodes, does anyone know how to come around this fact of the visual page builder?
I will appreciate your expert help., or a place I can post this issue and get help from experts.

Thank you in advance.

The page I need help with: [log in to see the link]