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

Item Value
SQLCODE -1007
Constant SQLE_CORRUPT_REDO
SQLSTATE 08W88
Sybase error code 840
ODBC 2 State 08001
ODBC 3 State 08001
Parameter 1 The name of the transaction log file.

Probable cause 

The specified file is not a valid transaction log.