Error 0x88250007

Value: -2010841081 | 0x88250007 | 2284126215

What does it mean ?

E_RDDB_VM_ALREADY_ASSIGNED  
This VM is already assigned to a another user.
Value: 7 | 0x0007 | 0b0000000000000111

Where does it come from ?

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

Other Errors for FACILITY_RDDB