Error 0x80320019

Value: -2144206823 | 0x80320019 | 2150760473

What does it mean ?

FWP_E_NOTIFICATION_DROPPED  
A notification could not be delivered because a message queue is at its maximum capacity.
Value: 25 | 0x0019 | 0b0000000000011001

Where does it come from ?

FACILITY_FWP  
Firewall Platform
Value: 50 | 0x032 | 0b00110010

Other Errors for FACILITY_FWP