Sorting issue

Hello,
I have created gallery and gallery groups. All good but I have issue with arranging photos in a gallery. When I change “Default sorting” with “File name Asc” its all good and in the right order. I click “update”, in the preview button I see right arranging the photo gallery. But when I open the site its not updated and it’s previous sorting ??
I open again wordpress=> photogallery I find the gallery, clik on it and its with previous settings (default sorting)
So I cant find way to save “file name Asc”. Update button update it but its not updated at all..
I use google chrome browser
Photo gallery plugin is updated

The page I need help with: [log in to see the link]