Error 0x80510002

Value: -2142175230 | 0x80510002 | 2152792066

What does it mean ?

OPC_E_RELATIVE_URI_REQUIRED  
A part name cannot be an absolute URI. An absolute URI begins with a schema component followed by a ":", as described in RFC 3986: URI Generic Syntax.
Value: 2 | 0x0002 | 0b0000000000000010

Where does it come from ?

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

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Other Errors for FACILITY_OPC