Application menu not working in debian stretch

[virat-kumar]

System Info
os : Debian stretch / 9
kde plasma version 5.8.6
kde framework version 5.28.0
Qt version 5.7.1
Command
plasmawindowed org.kde.activeWindowControl
Output
Warning: QT_DEVICE_PIXEL_RATIO is deprecated. Instead use:
QT_AUTO_SCREEN_SCALE_FACTOR to enable platform plugin controlled per-screen factors.
QT_SCREEN_SCALE_FACTORS to set per-screen factors.
QT_SCALE_FACTOR to set the application global scale factor.
org.kde.plasma: requesting config for "Active Window Control" without a containment!
"0 instead of 1 arguments to message {Switch to activity: ...} supplied before conversion."
@kotelnik