After installation & One click demo import go and check home page if navigation is broken(see below image) then follow below steps.
Header Default
Primary menu-v1 navigation is used for header default.
Header v1
Primary menu-v1, Vertical menu and Primary menu-v2 navigation are used for header v1.
Header v2
Primary menu-v1, Vertical menu and Primary menu-v2 navigation are used for header v2.
Header v3
Primary menu-v1 and Primary menu-v2 navigation are used for header v3.
Footer Menu
Footer menu-v1, Footer menu-v2, Footer menu-v3, Footer menu-v4 and Footer currency switcher navigation are used for Footer menu.