Error 0x80630015

Value: -2140995563 | 0x80630015 | 2153971733

What does it mean ?

PEER_E_GRAPH_IN_USE  
The graph is still in use.
Value: 21 | 0x0015 | 0b0000000000010101

Where does it come from ?

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

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