Panon widget isn't working

file:///home/renni/.local/share/plasma/plasmoids/panon/contents/ui/main.qml:11:37: Type Spectrum unavailable

file:///home/renni/.local/share/plasma/plasmoids/panon/contents/ui/Spectrum.qml:218:5: Type WsConnection unavailable

file:///home/renni/.local/share/plasma/plasmoids/panon/contents/ui/WsConnection.qml:2:1: module “QtWebSockets” is not installed

I installed QtWebSockets with dnf and rebooted and it still doesn’t seem to be working, as for the other two I’m not sure what they are, and googling didn’t help.