Error 0x8051004A

Value: -2142175158 | 0x8051004A | 2152792138

What does it mean ?

OPC_E_MC_INCONSISTENT_PROCESS_CONTENT  
The ProcessContent attribute does not have a matching Ignorable attribute on the same element.
Value: 74 | 0x004A | 0b0000000001001010

Where does it come from ?

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

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