Lightbox not working with images.

Hi,

I have a Youtube video working properly, but anytime I try to use images it just goes to the file itself and does not load in a light box.

I am not sure what I am doing wrong. I also went to: https://www.23systems.net/wordpress-plugins/lightbox-plus-for-wordpress/demos/

and these images do not seem to be loading in lightboxes either.

I am getting the same result on my page http://jcsweblab.com/test/

Am I missing something?

I really appreciate any help you might have.

Thank you,
Jorgen

https://wordpress.org/plugins/lightbox-plus/