Can't take backup before upgrading Service pack.

Hi,

I am trying to upgrade from version 10100 to 11100 in OpManager.

Getting a java error while taking backup.

Please help. See below.

[01-16-2014]|[13:43:13:912]|[FINE] : *******************   Backup DB Started ***********************
[01-16-2014]|[13:43:13:914]|[FINE] : Backup Started on 01-16-2014 at 13:43:13:913
[01-16-2014]|[13:43:13:917]|[FINE] : no_of_threads = 2
[01-16-2014]|[13:43:14:933]|[FINE] :
[01-16-2014]|[13:43:14:933]|[INFO] :
Please wait ! Trying to start database server .....
[01-16-2014]|[13:46:33:266]|[SEVERE] : Error occurred during Backup.jdbc.RestoreException: Unable to start database server.
    at jdbc.BackupDBUtil.startDBServer(BackupDBUtil.java:803)
    at jdbc.AbstractBackupDB.backupDB(AbstractBackupDB.java:75)
    at jdbc.AbstractBackupDB.doBackup(AbstractBackupDB.java:438)
    at jdbc.BackUpImpl.backupDB(BackUpImpl.java:75)
    at com.adventnet.me.opmanager.dbmanager.DataMaintenance$BackupRestoreWindow$BackupRunThread.run(DataMaintenance.java:772)

[01-16-2014]|[13:46:33:267]|[FINE] : Backup finished on : 01-16-2014 at 13:46:33:267
[01-16-2014]|[13:46:33:268]|[FINE] : *******************   Backup DB Completed ***********************