background music autoplayer not working 😞

Hey y'all ! So, I've had a certain html code on my "about me" section so that music would play in the background when someone clicks on my profile for months and recently I wanted to swap songs and the only thing I changed was the youtube video id and it just stopped playing. I changed it back to the song I had at first, but still nothing. I've tried like 4 or 5 different codes today (so far) and nothing seems to be working, please help a guy out !!!