specified file 'dump devices' is out of sequence?

i was getting error message while processing load transaction in sybase ase server,below i mentioned commands and errors for above error

1> load transaction new_db

2> from "C:\Sybase\BK\newdb_trbk.dmp"

3> go

Backup Server session id is: 76. Use this value when executing the

'sp_volchanged' system stored procedure after fulfilling any volume change

request from the Backup Server.

Backup Server: 6.28.1.1: Dumpfile name 'new_db1326004A5A ' section number 1

mounted on disk file 'C:\Sybase\BK\newdb_trbk.dmp'

Msg 4305, Level 16, State 1:

Server 'Sybase', Line 1:

Specified file 'dump device' is out of sequence. Current time stamp is Sep 17

2013 5:17:14:923AM while dump was from Sep 17 2013 4:51:14:743AM.

kindly help me to find solution for above problem?