Navigation arrows between images do not work in FancyBox 3. How to fix?

Question

JavaScript

Tell me what you can do to display the arrows between the pictures. Nothing helps. It is impossible to scroll through the images on the website http://vv-berezhok.rf/list-535-94.html

Answer 1

Why so?
It can be easier.
Just specify the data-fancybox="gallery" attribute and he will understand that this is a gallery. And you can safely delete all this canvas.