Fancybox

Hello – trying to get the Horizontal scroll google picasa images plugin to work properly, and I’m having some trouble getting the Fancybox to work. Here’s the link to my site:

https://sites.unishanoi.org/apacorchestra/photos/

When I click on an image, the Fancy box opens but so does a new tab with the image itself. Is there any way of getting only the Fancybox to open, and not the new tab?

Thanks for your help in advance!

https://www.ads-software.com/plugins/horizontal-scroll-google-picasa-images/