Facebook Pixel on multiple pages

Hello peeps,

I am trying to get a FB pixel to work on our website but it doesn’t. I had it working on the homepage to track leads from the submit button, but i have another submit button on another page that it won’t track. Facebook business manager gives me an error message. Does anyone know anything about this?

Here is my site Read-Only: LINK
(how to share your site Read-Only link)