If video link not run:

https://drive.google.com/file/d/1RD1nzDNCOYPKWakj0XtmTEPr6lSBboUG/view

Solution: 

Please note that this is not a problem of the theme because we do not customize anything related to uploading images, videos for the product (admin).

However, we found some suggestion from somebody also get this issue. Please refer some links:

https://magento.stackexchange.com/questions/280709/video-not-found-while-add-vimeo-video-in-magento-2

https://itcruncher.blogspot.com/2021/01/vimeo-video-not-found-issue-fixation.html

They can help you to check this problem.