Overlay menu work fine in desktop devise, but in mobile devices no work. 

When I click the Button, this add the class "dl-active" in button class "menu-toggle dl-trigger" but not add the others class to the rest of DIV's in the HTML.

Only change Buttoms with CSS.

@media (max-width: 768px) {
    #primary-navigation .menu-toggle {
        display: none!important;
    }
    #primary-navigation .hamburger-toggle,
    #primary-navigation .overlay-toggle {
        display: inline-block!important;
    }
}