Error 0x88250008

Value: -2010841080 | 0x88250008 | 2284126216

What does it mean ?

E_RDDB_USER_ALREADY_ASSIGNED  
This user has already been assigned another VM.
Value: 8 | 0x0008 | 0b0000000000001000

Where does it come from ?

FACILITY_RDDB  
Remote Desktop Database
Value: 2085 | 0x825 | 0b100000100101

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