Lightbox problem

[TheFriendlyGhost]

Hi there,
I've worked on a new website for a friend and used lightbox already and it worked perfectly.
Since some days it doesn't and I don't have any clue why this happened.
All checkboxes are checked for the lightbox

Anyone here can tell me what other things I could crosscheck?

Cheers
Christoph

[mariusjopen]

Dear @TheFriendlyGhost
Can you post a link to your website?
We will then have a look and inspect that!
Many wishes!
Marius