Menu is not working on mobile devices

Kindly Fix that problem!!

On mobile device you can see responsive menubar but no drop down menu….

1. Go to Mega Menu > Menu Themes and set the Mobile Responsive Breakpoint to 1100px.
2. Apply this: https://www.maxmegamenu.com/documentation/faqs/disable-mobile-toggle/
3. Delete this CSS from your themes style.css file: https://screencast.com/t/BVFwUteQ
4. Add this CSS to your themes style.css file:

.wpc-menu.wpc-menu-mobile {
    background: black;
}

Regards,
Tom