How to get rid of extra mobile menu icon

I decided to use MegaMenus since I couldn’t seem to modify the OnLine shop menu as I wanted. But now, when viewing on the laptop or phone, the default mobile menu still appears to the right of my megamenu. If I turn off the mobile menu I loose both.

If not possible is there a resource with “newbie” instructions for modifying the OnLine shop menu? I did not care for the way it displays and no amount of playing around with the settings seemed to help.

Thanks

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