Preloader plus

Hello, I got problem with this page. In settings I set show preloader only on home page and only for first visit. When I click after animation to another section and back home animation start again and again on home page. Please how can I fix that have u got some code or update for plugin? What can I do ?

page: https://gradi.sk

Thank you a lot guys!

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