Lightbox no longer working

Please forgive this post. Lightbox 2.7.2 was working for me just fine. It no longer works. I have spent hours trying to reinstall and deal with it on my own, reading posts and all. Have I removed something I need? Please help and thank you!

Here is a page it is being tested on https://simonlevenson.com/wordpress/?page_id=15

Also here is the folder structure https://simonlevenson.com/wordpress/?p=24