Error 0xC800070D

Value: -939522291 | 0xC800070D | 3355445005

What does it mean ?

hrTooManyAttachedDatabases  
There are too many databases open.
Value: 1805 | 0x070D | 0b0000011100001101

Where does it come from ?

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

Other Errors for FACILITY_NTDSB