this looks like the settings has not been imported properly because of the limits on server side. Now, you must go to Appearance > Menus section and activate "Mega Menu" option for menu items the way as we described it on http://themes.muffingroup.com/betheme/documentation/#menu
Where exactly is that "Activate mega menu option" ? because in the documentation I cant find anything about it, cause my menu hat the "-" on the navigation label and as you can see its not working properly in the frontend
Comments
this looks like the settings has not been imported properly because of the limits on server side. Now, you must go to Appearance > Menus section and activate "Mega Menu" option for menu items the way as we described it on http://themes.muffingroup.com/betheme/documentation/#menu