Error 0x80510008

Value: -2142175224 | 0x80510008 | 2152792072

What does it mean ?

OPC_E_NONCONFORMING_CONTENT_TYPES_XML  
The Content Types stream XML markup does not conform to the syntax specified in RFC 2616: HTTP/1.1 and the OPC.
Value: 8 | 0x0008 | 0b0000000000001000

Where does it come from ?

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

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