Sticky menu does not work

I tried sticky menu, but that does not work.
I even used a clean joomla install (without any other plug-in).
I get the CSS3 menu, but sticky menu still does not work

Hi ,
Thanks for contacting us and choosing our product!
Sorry for but now is weekend and our staff support for this product have a flu now. So He will return and help you fix it on Monday and please wait. You can contact him via email This email address is being protected from spambots. You need JavaScript enabled to view it. for more details.
Hope this help!

Hi
Sticky our menu works only on the big screen. on mobile it may not work, you can send me an account site via message private. I will check to help you. Thanks