Fancybox Gallery Issues

Hi,

Wondering if anyone can help me out with an issue I’m having with the Fancybox plugin.

I’m trying to insert a gallery so that users can click on an image and it will appear as an enlarged, full sized pop-up with a caption.

However, when I insert the gallery and then click on the image on the webpage, it leads to a seperate post featuring the image. What am I doing wrong?

*Couldn’t figure out whether to post this here or in the plugins forum. So apologies if it shouldn’t be here.