Mobile menu is now appearing on top of my full site

Hi there, not sure what has happened but I urgently need your help as I have to launch this officially at the weekend.

You will see the issue immediately at the top of my sites pages.

I was messing around with the header and mobile settings so I guess I must have somehow managed to now have 2 menus display on my header in full site mode i.e the hamburger mobile menu and the main primary menu. Please help me remove the mobile menu from here.

Thank you so much in advance
Judith