Videos Showing on mobile only

I have uploaded a few videos, All I get is a black screen at https://soilboilandbubble.com/videos/

It does play that video where the black screen is on mobile but not on a desktop.

Also when I click any other of the videos it brings me to a page/url where now there is no video
https://soilboilandbubble.com/videogallery/easiest-and-best-tasting-pizza-dough-2/

https://www.ads-software.com/plugins/contus-video-gallery/