Unable to start specified database: '%1' is an invalid transaction log mirror

Error constant SQLE_CORRUPT_REDO_MIRROR
ODBC 2 state 08001
ODBC 3 state 08001
Parameter 1 The name of the transaction log mirror file.
Severity 11
SQLCODE -1008
SQLSTATE 08W72
Sybase error code 840
 Probable cause