Menu full open im mobile

[gtbu]

At first a had to set : disableSubMenuLink: 'never' to make sublinks function in desktop-mode.

But if i klick at the button in mobile mode(768px), the menu opens all levels.
I klick on a subarrow has no closing function.
P.S. Solved
I forgot the < a href="#" class="nav-close">Close Menu< /a> behind .
(Also the menulevels are only defined for 4 levels)