Not working in a lightbox

Hi there,

My name is chirag i am developing my client’s website with Divi theme. I am using contact form 7 multi step pro but it’s not working in a lightbox. the link is https://clearpointmtg.wpengine.com/purchase-property/

Can you please just check and make sure and give me solution as soon as possible.

Thanks,
Chirag

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