the music stopped working,,,what's wrong with my code?

<iframe width="0" height="0" src="https://www.youtube.com/embed/UCCyoocDxBA?start=0 & ;amp; ;autoplay=1& ;loop=1" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe>