How to setup Slider Section Blog Expert

Hello. Sorry for my English.
Need help with setting the slider in the subject
How to setup? On the site now, I turned it off. I give a link as it looks. How to connect the pages of my site instead of gray rectangles?
Thank you

https://www.dropbox.com/s/uo5vxi4sv8h19uu/%D0%A1%D0%BA%D1%80%D0%B8%D0%BD%D1%88%D0%BE%D1%82%202017-10-10%2012.11.20.png?dl=0

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