Error 0x803381F7

Value: -2144108041 | 0x803381F7 | 2150859255

What does it mean ?

ERROR_WSMAN_EVENTING_INVALID_ENCODING_IN_DELIVERY  
The subscribe packet contains an Encoding value that is not valid in the delivery section.
Value: 33271 | 0x81F7 | 0b1000000111110111

Where does it come from ?

FACILITY_WINRM  
Windows Resource Manager
Value: 51 | 0x033 | 0b00110011

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