The problem with the pop-up window to add to cart

Hi
In Virtuemart I set a popup window for "add to cart" and Hot VM Scroller by pressing the button "add to cart" does not appear in a popup window just takes me straight to the shopping cart. Why?
Help me please. Thank you.

Enable vm scripts and ajax in configuration

Thank you for your reply, but I have included vm scripts and ajax in module configuration.
My configuration in the picture.
How do I turn on extra load JQuery I have a bug in js (direction: 'vertical') and then scroll does not work.

var VmsInit2 = function(){
jQuery('#VMScrollBoth2').hotvmscroller({
speed:1000,
delay:4000,
transition:'linear',
direction:'vertical'
});
};

jQuery(document).ready(function(){
VmsInit2();
});


Here is my website:
www.swiataloesu.pl

Second jquery ref you have on page is from vmscroller and you do have parameter in module settings to turn it off