can’t see video

I’m really sorry to have to bother you…I’ve tried transparent-ing all the backgrounds I can find, and I still don’t see the video in the BG of this site: https://pilgrimcreativemedia.com/

It’s supposed to show behind the opening screen/row, but not behind the rest of the page rows. It used to work, then something happened with the theme or something else, and now it doesn’t show at all. (I used to also see it behind one of the cracks between the rows at the bottom, and I don’t see it there either.) I’ve been trying to debug it on my own for weeks, and I’m out of ideas. I’d really appreciate any help you can provide. I’m sorry if it’s something easy that I should have found. I’m boggled.

Thanks so much!

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