Backup problem

Greetings
I have fallowing problem during backup :

Please wait ! backup in Progress...................
0-----------------------50------------------------100(%)
===================================java.io.IOException: No such file or director
y
at java.io.FileOutputStream.writeBytes(Native Method)
at java.io.FileOutputStream.write(Unknown Source)
at sun.nio.cs.StreamEncoder$CharsetSE.writeBytes(Unknown Source)
at sun.nio.cs.StreamEncoder$CharsetSE.implWrite(Unknown Source)
at sun.nio.cs.StreamEncoder.write(Unknown Source)
at java.io.OutputStreamWriter.write(Unknown Source)
at java.io.BufferedWriter.flushBuffer(Unknown Source)
at java.io.BufferedWriter.close(Unknown Source)
at com.adventnet.servicedesk.tools.SDBackUp.dumpTable(SDBackUp.java:619)

at com.adventnet.servicedesk.tools.SDBackUp.startBackup(SDBackUp.java:17
8)
at com.adventnet.servicedesk.tools.SDBackUp.process(SDBackUp.java:71)
at com.adventnet.servicedesk.tools.SDBackUp.main(SDBackUp.java:878)

stopping DB Server >>>>> true

Regards
Bart