Sometimes, the page won't load. It just stays blank. A refresh/reload will usually fix it.

Interestingly, when the pages doesn't load, you can still scroll down and the menu starts to appear.

This is in Chrome. Screenshot attached

Looks like a JS error that stops the actual load. See the report at the bottom of the attached image.

Please advise.

That didn't work. The problem still persists.

If it helps, the page https://www.marketingbuilder.net/theproduct/ shouldn't have a navigation menu (it is a landing page). However, when you first navigate to it, it doesn't load yet you can see a white logo and white menu items on a white background (just really faint).

Then, if you refresh the page, it loads how it should i.e. without a navigation menu.

I don;t want people to be able to navigate away from this page very easily.

I had a friend look at it for me and he recorded the video https://drive.google.com/file/d/1Mo2rFVhxKc7ljRRCPxL8BXtcEYLOp9I5/view 

Thanks, Maxime