Error 0x80072390

Value: -2147015792 | 0x80072390 | 2147951504

What does it mean ?

DNS_ERROR_NOT_ENOUGH_SIGNING_KEY_DESCRIPTORS  
The zone does not have enough signing keys. There must be at least one key signing key (KSK) and at least one zone signing key (ZSK).
Value: 9104 | 0x2390 | 0b0010001110010000

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

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