Masonry image swiper image issue

Hello all!
I have dynamic gallery (photos get from a folder) and photos open in the lightbox.

BUT switching (next/previous) photo always show the same photo, the one that I used to trigger the lightbox.

The gallery is here: http://discomobile-fiesta.ca/realisations.php

dynamic_attribute_lightbox555×774 8.79 KB

dynamic_attribute_url358×759 8.01 KB

I can’t figure out what little stupid thing I am missing.