Video not playing

[Laisamacias]

Hello, I am using the Debut theme in my shop but when I add a video using a YouTube link it does not play. It shows the cover photo that I added with the play button but nothing ever plays. 

[Laisamacias]

Thank you, any advise as to why this is happening and how I can fix would be appreciated. 

[Laisamacias]

I would prefer to keep the theme I am using. I would like help fixing the problem, changing themes for me would not be a solution.