compatible with Elegant Themes

I installed Featured Video Plus because I started to do YouTube videos for my blog posts. However, I have inserted the link and configured the plugin but the featured image, not the video is showing. Is your plugin compatible with Divi from Elegant Themes?

This is my blog: https://www.kwokdesign.com/kwok-talk/
This is the post where I want the video to replace my featured image: https://www.kwokdesign.com/wordpress-5/

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