Error 0x80310033

Value: -2144272333 | 0x80310033 | 2150694963

What does it mean ?

FVE_E_PROTECTOR_NOT_FOUND  
The specified key protector was not found on the drive. Try another key protector.
Value: 51 | 0x0033 | 0b0000000000110011

Where does it come from ?

FACILITY_FVE  
Full volume encryption
Value: 49 | 0x031 | 0b00110001

Other Errors for FACILITY_FVE