Hi Roi,
Thanks for your response.
Here is the page that is suppose to use the Lightbox
https://lucas-marconi.wixsite.com/website/songs-via-marconi
If you click ‘Listen to Preview’, it should pop up Lightbox with an HTML component that contains the player to the song.
It works properly in Preview mode but when Published, the button does nothing when clicked.
it has been 3 days now trying to fix it 
regards,
Marconi