English: Menu is not set.<br>Please set menu from [ <a href="%s">Appearance > Customize</a> ] Page -> "Menus" panel -> Menu Locations "Mobile Navigation".
Dutch: Menu is niet ingesteld.<br> Stel het menu in vanuit [ <a href="%s">Weergave > Aanpassen</a> ] Pagina -> "Menu's" paneel -> Menu Llocaties "Mobiele navigatie".