Not functioning properly

Hi I manage a site www.oapschat.co.uk .

I have installed the JUX CSS3 Mega Menu as my primary main menu near the top of my site.

I am having a few issues with the functionality of the menu.

The sticky menu does not work.

the menu does not align in the centre of the page.

my joomla version is 3.4.8

Thanks for your help.

Hi matthew,
Thanks for contacting us and choosing our product!
1. About you problem. Due to conflict with template. Please go to CSS3 Mega Menu module -> tab advanced -> config custom css
add css
#jux_megamenucss3 .megamenu .js-megamenu.container{
margin: 0px auto;
background-color:#297c7f;
}
Your problem may not work sticky menu. because you are using a different software to load the JS library and it has blocked all JS files loaded from the module. Please check again. or you can send me an account site via message private. Thanks
note: Maybe you're using this software extensions.joomla.org/extension/jquery-easy