Some KDE widgets are not working

I tried some menu widgets in KDE but none worked here is the error messege:

file:///home/riddle/.local/share/plasma/plasmoids/OnzeMenu/contents/ui/main.qml:59:9: Type MenuRepresentation unavailable

file:///home/riddle/.local/share/plasma/plasmoids/OnzeMenu/contents/ui/MenuRepresentation.qml:40:1: module "org.kde.plasma.private.quicklaunch" is not installed

It looks like that add-on is dependent on another one which is missing. Try installing that one too if it is still available.

The widgets in the store are provided by the community and are not always working or updated.