Error 0x80510050

Value: -2142175152 | 0x80510050 | 2152792144

What does it mean ?

OPC_E_ENUM_COLLECTION_CHANGED  
The enumerator is invalid because the underlying set has changed.
Value: 80 | 0x0050 | 0b0000000001010000

Where does it come from ?

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

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