Our detectives are back with the following intel on this WordPress site
The site is using the _themename theme by Anas Abdul Majeed .
We could identify 2 plugins (there might be more) -
UniqueID for Contact Form 7
Lightbox with PhotoSwipe
This information was last updated 10 June, 2020
An add-on for Contact Form 7 to add an unique id to every form submission.
Integration of PhotoSwipe (http://photoswipe.com) for WordPress.