Restore backup not able to unzip

Hi

When i perform a restore in our test environment with a fullbackup made in SD+ 8205 the restore program is unable to unzip it.

INFO: rebrandData :: {OPMANAGER={name=OpManager}, PRODUCT={name=ManageEngine Ser
viceDesk Plus}, ADMANAGER={name=ADManager}}
Extracting backup file....
Please wait extracting backup file
java.util.zip.ZipException: zip file too large
        at java.util.zip.ZipFile.open(Native Method)
        at java.util.zip.ZipFile.<init>(Unknown Source)
        at java.util.zip.ZipFile.<init>(Unknown Source)
        at com.adventnet.servicedesk.tools.RestoreSDBackup.extractBackupFile(Res
toreSDBackup.java:1022)
        at com.adventnet.servicedesk.tools.RestoreSDBackup.deCompressData(Restor
eSDBackup.java:1017)
        at com.adventnet.servicedesk.tools.RestoreSDBackup.restoreDatabase(Resto
reSDBackup.java:186)
        at com.adventnet.servicedesk.tools.RestoreSDBackup.main(RestoreSDBackup.
java:138)
        at com.adventnet.servicedesk.tools.RestoreDialog$5.run(RestoreDialog.jav
a:186)
        at java.lang.Thread.run(Unknown Source)
Unable to restore database : zip file too large
zip file too large

2013-aug-06 14:05:09 com.adventnet.updatemgr.util.ConfUtils stopDB
INFO: dbadapter :: [null], startDBServer :: [false], dbProp :: null