Error 0x80510038

Value: -2142175176 | 0x80510038 | 2152792120

What does it mean ?

OPC_E_MC_INVALID_QNAME_LIST  
A markup compatibility attribute contains an invalid list of element names.
Value: 56 | 0x0038 | 0b0000000000111000

Where does it come from ?

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

Other Errors for FACILITY_OPC