Error 0xC004F006

Value: -1073418234 | 0xC004F006 | 3221549062

What does it mean ?

SL_E_EXTERNAL_SIGNATURE_NOT_FOUND  
The Software Licensing Service reported that the signature file for the license is not available.
Value: 61446 | 0xF006 | 0b1111000000000110

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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