In mobile Website, Sub menu not working?

I have installed wp responsive theme for my site, url [noparse]http://sdreamworks.in[/noparse] and [noparse]http://insightab.com[/noparse] in mobile view, sub menu not working? what is the exact problem for in this case…

Hi sdreamworks.

in mobile view, sub menu not working

Which mobile view? Works fine on iPhone.

In mobile Website responsive, sub menu not visible in view.