So, i uploaded a demo file. See: How to mute or pause an embedded youtube video with a click
I also downloaded your files and began creationComplete: Wisers_prj.zip - Box
YouTube starts playing automatically and muted.
I don't understand where is your click button on stage: "and upon clicking a button, it will restart from the beginning with sound." ?
It works but pause button dosent work,
when I click to pause button video dosnt stop