Lightbox does not open – redirect to youtube

sorry, missed to post the code:

I changed the url, already know that ??

shortcode:
[video_lightbox_youtube video_id=”mx1p6l57IQI” width=”640″ height=”480″ anchor=”https://my-url/picture.jpg”%5D

html:
<a href=”https://www.youtube.com/watch?v=mx1p6l57IQI&#8221;
rel=”wp-video-lightbox” title=””><img
src=”https://my-url/picture.jpg&#8221;
alt=”YouTube” width=”60″ />

Hi, can you check and confirm that you have enabled prettyPhoto in the wp video lightbox settings?