Bug Navigation LightBox gallery

Hello,

I am a free user, I am using this gallery in my website and I am using lightbox, I have a problem with the navigation arrows, because when I open a picture if I click to move forward or backwards the arrow goes to the top of the picture.

you can see what I am talking about in my website:

https://www.boatofculture.com/gallery/

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