Error 0x80630305

Value: -2140994811 | 0x80630305 | 2153972485

What does it mean ?

PEER_E_DATABASE_ALREADY_PRESENT  
The database already exists.
Value: 773 | 0x0305 | 0b0000001100000101

Where does it come from ?

FACILITY_P2P  
Peer Graphing API
Value: 99 | 0x063 | 0b01100011

Other Errors for FACILITY_P2P