Audio plying on background after returning on home page

Dear friends
This has happened with two different popup plugins
I have configure the settings to popup on homepage only and cookies storage time for 1 hour or more. The popup contains video from youtube. It works fine for the first time, while we choose to close the popup. After we browse other pages on the site and come back on home page the sound of the popup video start plying again.
This occurs using Safari

Is there a way of stopping this?

my website is https://www.p3c.cl
I appreciate your desire to help before!