The problems occur where it is an authorized section. That's why I have saved the page as an html file and get rid of much of the html parts unrelated with the problem leaving only the menu.
Here it is: https://drive.google.com/open?id=0B5gQkiHExr_qWGZiWWxjU2IyQWc
The mobile test, as you will surely know, can be performed on Chrome Developer Tools by clicking mobile icon and refresh the page. Previewing on the mobile section it will be seen that dropdowns will not open by clicking menu items.
I will be appreciated for your deal.