Oracle Error ORA-16441: Current log string for thread string sequence string is invalid.

Oracle Error Message

ORA-16441: Current log string for thread string sequence string is invalid.

Reason for the Error

ALTER SYSTEM FLUSH REDO TO STANDBY failed because the current redo log file was corrupt.

Solution

Restore the current log at the primary database, and then reissue ALTER SYSTEM FLUSH REDO TO STANDBY from a mounted primary instance.