cant get the gallery images to display

I love the pin it button. i’ve installed it on our other site running on photocrati theme with next gen gallery and it worked perfectly fine. https://paulnelsonimages.com/sabita-and-shawn-brampton-sikh-wedding/2011/10/ When you push the “Pin It” button a gallery of all images in the post comes up for the user to choose from. It’s perfect. The problem is that I’m building another site using the same theme and installed the plug in, but it’s not pulling the images the same way as the other site. It’s not showing the gallery of images but the image for next gen gallery (one image) or just the featured thumbnail if you push the top button. https://www.paulandsylvia.com/orangeville-wedding-photography-crystal-and-matt/. Do I need another plugin that will somehow pull up those images, or am I missing something else? PLEASE HELP.

PS. I chose in the settings for the user to choose their own image.

https://www.ads-software.com/extend/plugins/pinterest-pin-it-button/