Only one photo in slidshow, how can i change it?

Hello,
I add the shortcode with number of my gallery to my post, but only what i see is the first photo from this gallery, it change form of display but wont change numbers of displaying photos.

In short words. How to set, and what to do with gallery to scroll whole album, gallery and not only one first photo.

Thanks for any answer, sorry for mistakes.

https://www.ads-software.com/plugins/nextgen-3d-flux-slider-template/