Thumbnail click bringing up multiple photos

HI –

We have this plugin installed and are experiencing an issue where when we click on the thumbnail of the gallery we are getting a photo over the same photo in the background. Any settings you could recommend to address this?

Here is a link to one of the pages doing this:

https://www.keyesweb.com/project-photos/ductless-mini-split/

Thanks,

Bryan

https://www.ads-software.com/plugins/photo-gallery/