I want to display the current media in the lightbox when I click on a media in the gallery [closed]

"I have a code that displays the header, the gallery for each photographer. I managed to display the lightbox when clicking on a media (JSON file containing the necessary data), but the problem is that when I click on any media, it shows the first media from the list and not the selected media. The code javascript is in two files, one containing the lightbox and the other containing the media factory and