Problems in RestoreDB.data

Hi, I'm trying to make a RestoreDB.bat in a clean instalation of OpManager 7.0. The log says the following:

java.io.IOException: Stream closed
at java.io.BufferedInputStream.getInIfOpen(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at java.io.FilterInputStream.read(Unknown Source)
at jdbc.RestoreBackup.readZipAndUnzip(RestoreBackup.java:1136)
at jdbc.RestoreBackup.unZip(RestoreBackup.java:1123)
at jdbc.RestoreBackup.deCompressData(RestoreBackup.java:1100)
at jdbc.RestoreBackup.main(RestoreBackup.java:1246)
Unable to decompress data. File may be modified.

Can you help me with this problem ??...