Sahifa Theme and WP Youtube Post

So, I’m trying to use the plugin WP Youtube Post to create posts on Sahifa Theme for test site https://www.cfmybox.com. I used the directions stated here: https://www.constantinb.com/youtube-video-post-for-wordpress-theme-compatibility-tutorial/ to make the theme compatible. The only thing that is missing when a video is posted is the video. Thumnail is there, text is there, it shows that it a “video post,” but there is no video. I can’t figure out what I’m missing. Please help.