Error 0xC80004B7

Value: -939522889 | 0xC80004B7 | 3355444407

What does it mean ?

hrDatabaseLocked  
The database is locked.
Value: 1207 | 0x04B7 | 0b0000010010110111

Where does it come from ?

FACILITY_NTDSB  
Active Directory Domain Services
Value: 2048 | 0x800 | 0b100000000000

Other Errors for FACILITY_NTDSB