Kamoso crashes on startup

Package: kamoso
Version: 3.2.4-1

Kubuntu 18.04 bionic
x86_64 Linux 4.15.0-46-generic
KDE 5.44.0 / Plasma 5.12.7

Kamoso always crashes on startup.

Output when starting from the command line:

me@here:~$ Playing device changed "/dev/video0"
Cannot initialize model with data QJsonObject() . missing: QJsonValue(string, "urls")
new gamma 109
new gamma 110
file:///usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/Slider.qml:204:5: QML RangeModel: Binding loop detected for property "value"
New saturation 100
New contrast 100