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SQL Server error code

SQL Server error 7901

SQL Server raises error 7901 at severity 16, which marks a problem with the query or data that you can correct.

The repair statement was not processed. This level of repair is not supported when the database is in emergency mode.
Msg7901
NameDBCC2_DATABASE_IN_EMERGENCY_MODE
Severity16
Group7000–7999

What it means

The database is in emergency mode and a repair level other than REPAIR_ALLOW_DATA_LOSS has been specified. Repairs cannot be made in emergency mode unless REPAIR_ALLOW_DATA_LOSS is specified.

Source: Database Engine events and errors