Error 0x8027002B

Value: -2144927701 | 0x8027002B | 2150039595

What does it mean ?

COPYENGINE_E_ALREADY_EXISTS_SYSTEM  
Destination with system attribute exists, cannot replace
Value: 43 | 0x002B | 0b0000000000101011

Where does it come from ?

FACILITY_SHELL  
User Shell
Value: 39 | 0x027 | 0b00100111

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