Error 0x8009480A

Value: -2146875382 | 0x8009480A | 2148091914

What does it mean ?

CERTSRV_E_SIGNATURE_COUNT  
The request is missing one or more required signatures.
Value: 18442 | 0x480A | 0b0100100000001010

Where does it come from ?

FACILITY_SSPI  
Used for status code returned by Security Support Provider Interface (SSPI)
Value: 9 | 0x009 | 0b00001001

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