Android Question Flightmode with Toggle-Lib

Hello
I want to change the flightmode on off with the Toggle-Lib

Dim TGL AsToggle
TGL.Initialize()
TGL.Reboot -- error
TGL.TurnAirplaneModeOn -- errot

In the Manifesteditor I have following text.
AddPermission(android.permission.WRITE_SETTINGS)
AddPermission(android.permission.CHANGE_NETWORK_STATE)

Fehler: Permisson Denial: not allowed to send broadcast android.intent.Action.airplaine_mode from pid=27012, uid=10084

Can somebody help me?

Martin