Clicked on images not opening in new window

Hello,

I’ve had wordpress for a year or so now, but only as a blog. I’ve recently had a change of course and made it my website as well (if that makes sense). As a consequence I am now using galleries and the Theme PhotoPro.

The problem I have is when you click on an image on

https://www.rossphotography.co.uk/megaliths-and-pinhole-cameras/

Instead of loading the clicked on image in a new window with some details about the the image, the page refreshes and goes back to the top.

Originally the site sat in wwwroot/blog, I have since copied the index.php and moved the web.config file and made all the changes required to make wordpress power the entire site.

Any helps/suggestions regarding what the problem could be about the images would be gratefully accepted.

Many thanks,

Alastair