Featured Video not functioning using Funda theme

This is so frustrating and I’m trying every day to fix it. It doesn’t matter which Youtube URL I enter into the “Funda” options field, a video will not play. Consequently, there’s an empty white square on the front page of my website. Can anyone help, please. Even if I could get rid of the blank square, that would make my site look better! You can see what I mean if you look here: https://googlesniper-2.net
Thanks.