Mobile menu Problem

Hello, i have built a website using sports theme by theme cannon. The website is almost done except one bug. The top menu is not working on mobile devices. When i click on menu it appears and then within 1 second it disappears again. The problem is on main page only. It is working fine on other pages. Please have a look and let me know. Waiting for solution. Thanks

The page I need help with: [log in to see the link]