Hi There,
The lightbox function is not working at all when I checked. I found this JS error:
VM245:1 Uncaught TypeError: a.toLowerCase is not a function
    at X (eval at <anonymous> (vendor-ilightbox.min.js?ver=2.0.6:97), <anonymous>:1:2121)
    at HTMLAnchorElement.eval (eval at <anonymous> (vendor-ilightbox.min.js?ver=2.0.6:97), <anonymous>:1:10892)
    at Function.each (jquery.js?ver=1.12.4:2)
    at a.fn.init.each (jquery.js?ver=1.12.4:2)
    at aa.attachItems (eval at <anonymous> (vendor-ilightbox.min.js?ver=2.0.6:97), <anonymous>:1:10716)
    at new aa (eval at <anonymous> (vendor-ilightbox.min.js?ver=2.0.6:97), <anonymous>:1:6820)
    at a.fn.init.g.fn.iLightBox (eval at <anonymous> (vendor-ilightbox.min.js?ver=2.0.6:97), <anonymous>:1:54522)
    at HTMLSpanElement.<anonymous> (cs-body.js?ver=2.0.6:1)
    at cs-body.js?ver=2.0.6:2
    at NodeList.forEach (<anonymous>)
You could try testing for a plugin conflict first. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it’s fixed, you’ll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.
Let us know how it goes!