URL link in photo image

 Recently started using Showtime Image Gallery. Love it.

But, I discovered a problem this morning. In the image description edit screen I want to include a link to a page on the same website (photographer portfolio page). At first I copied in the "relative" URL -
e.g. /photographers/3333-bryan-burton.html
for some reason the first / isn't saved resulting in the link field being
photographers/3333-bryan-burton.html

This causes the link to go to:
https://www.natcheztracetravel.com/natchez-trace-tennessee/nashville-franklin-tn/photographers/3333-bryan-burton.html
rather than:
https://www.natcheztracetravel.com/photographers/3333-bryan-burton.html

Note: the photo gallery is in this area of the site:
https://www.natcheztracetravel.com/natchez-trace-tennessee/nashville-franklin-tn/

so the url field is appending photographers/3333-bryan-burton.html onto the end

The page looks fine. But, I think Google will be real upset that I am creating the exact same page at two different urls.

I have tried editing the url, deleting it and redoing. I even tried including the full path:
https://www.natcheztracetravel.com/photographers/3333-bryan-burton.html
but it still saves
photographers/3333-bryan-burton.html

help!

Thank you.

Here is the front end of the photo gallery:
https://www.natcheztracetravel.com/natchez-trace-tennessee/nashville-franklin-tn/3223-parkway-scenery.html

Thanks for looking into this. It is super important that I can link from a photo to another page (article or category) on the same site.

Thanks for fixing this. Showtime Image Gallery is awesome!