Error 0x80510042

Value: -2142175166 | 0x80510042 | 2152792130

What does it mean ?

OPC_E_INVALID_XML_ENCODING  
The XML Encoding attribute must be UTF-8 or UTF-16.
Value: 66 | 0x0042 | 0b0000000001000010

Where does it come from ?

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

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