In a single page I'm including only jQuery 3.1.1 and stellar.js for a parallax scrolling effects, but when I try tu use it as $(window).stellar(); I get this error in console: Uncaught TypeError: ...

I've been trying to get build a website with a parallax effect like the one on this website: http://www.sparksandhoney.com/the-open-agency-index/ or http://www.sparksandhoney.com/press-index/ I've...