Error 0x803E0106

Value: -2143420154 | 0x803E0106 | 2151547142

What does it mean ?

WPN_E_NOTIFICATION_POSTED  
The notification has already been posted.
Value: 262 | 0x0106 | 0b0000000100000110

Where does it come from ?

FACILITY_WPN  
Notification Platform
Value: 62 | 0x03E | 0b00111110

Other Errors for FACILITY_WPN