Missing Sections After Publish

I’m hoping someone can help me.
It seems that when I publish my site I lose every section below the embedded HTML frames.

If I move these sections above the HTML frames then they appear.
I have checked as much as I can with my limited knowledge, could someone please have a look and point me in the right direction?

https://eventnetwork.webflow.io/icaras2020


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

I’ve solved this issue, Turns out one of our iframe codes didn’t have an end.