This shortcode loads video but not lightbox

This shortcode above loads video but not lightbox.

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“Start

____try code without quote marks____

StartHere

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Try this code alone – this one is working

STARTHERE>

Here is the button artwork.
https://www.simplyorganizedbookkeeping.com/wp-content/uploads/2018/08/StartHereButton.png

anchor=”http://www.example.com/images/youtube-thumb.jpg”

 

Carolyn Skaar video

_______ try adding button anchor to short code ______

Try this code alone – this one is working.

_______ try adding button anchor to short code not quotes on anchor ______

Try this code alone – this one is working!!!