Custom sidebar not show

Configuration Frontend
1

Hi friends. I read the whole thread but I still don’t understand why it doesn’t show me the menu. I have no file upload errors. Copy an example from another programmer so the code should work.

the code is not mine. Just copy it to modify it and be sure it worked

sidebar:
  sidebarMenu:
    - action: navigate
      navigation_path: "/lovelace/home"
      name: "Home"
      active: true
    - action: navigate
      navigation_path: "/lovelace/lampen"
      name: "Lampen"
    - action: navigate
      navigation_path: "/lovelace/music"
      name: "Muziek"
    - action: navigate
      navigation_path: "/lovelace/4"
      name: "Test"
    - action: toggle
      entity: light.beganegrond
      name: Lichtstrip
      state: light.beganegrond
      icon: mdi:led-strip-variant

Thanks