Error 0x80510046

Value: -2142175162 | 0x80510046 | 2152792134

What does it mean ?

OPC_E_DS_SIGNATURE_METHOD_NOT_SET  
The signature method has not been set. Call IOpcSigningOptions::SetSignatureMethod to set the signature method.
Value: 70 | 0x0046 | 0b0000000001000110

Where does it come from ?

FACILITY_OPC  
Open Connectivity Service (Package Consumption)
Value: 81 | 0x051 | 0b01010001

StackOverflow

Other Errors for FACILITY_OPC