Double menu on mobile devices

Hi, i have problem with my menu on mobile devices, because is there two times. I have this problem since updated my theme. Before i used one small hack for secondary menu on mobile devices (in free version wasn´t this option) and now when is secondary menu avaible in free version, i have problem :) . Can you please give me some advice? Thank you very much. link to my page: www.ochorvatsku.sk