Lightbox pop-up not working

ok, please install Mediabox CK
www.joomlack.fr/en/joomla-extensions/mediabox-ck

this shall work (Light version too)

It is installed. Still nothing.

Charlie

please also check that the plugin / system / Mediabox CK , is published

I apologize but the plugin is published and enabled.

please give me an admin acces
www.joomlack.fr/en/contact

the problem is that there is no lightbox loaded in the page, even if you have set the option in Slideshow CK, you must have a lightbox running
I don't see the mediabox plugin in the source code of your page, so I need to check what is wrong here

I entered the Item ID of the page where to load it, or tried to. Do you need to log in to the backend?