I have upgraded many times and never had a problem, but today when I run backupdata.bat I see the following on the screen and no backup happens.

c:\ManageEngine\ServiceDesk\bin>backupdata
Starting....
java.io.FileNotFoundException: SDPbackup.log (Access is denied)
        at java.io.FileOutputStream.open(Native Method)
        at java.io.FileOutputStream.<init>(Unknown Source)
        at java.io.FileOutputStream.<init>(Unknown Source)
        at com.adventnet.servicedesk.tools.SDBackUp.initBackup(SDBackUp.java:203)
        at com.adventnet.servicedesk.tools.SDBackUp.process(SDBackUp.java:95)
        at com.adventnet.servicedesk.tools.SDBackUp.main(SDBackUp.java:2359)
Jan 29, 2015 6:47:28 AM com.adventnet.servicedesk.server.utils.SDDataManager <init>
INFO: rootDir :: c:\ManageEngine\ServiceDesk\bin\..\
Jan 29, 2015 6:47:28 AM com.adventnet.servicedesk.server.utils.SDDataManager <init>
INFO: netutilsData :: {RELEASE={version=9.0}, BUILD={number=9032}}
Jan 29, 2015 6:47:28 AM com.adventnet.servicedesk.server.utils.SDDataManager <init>
INFO: rebrandData :: {ADSELFSERVICE={name=ADSelfService Plus}, OPMANAGER={name=OpManager}, PRODUCT={name=ManageEngine ServiceDesk Plus}, ADMANAGER={name=ADManag
er Plus}}

stopping DB Server >>>>> false
java.lang.NullPointerException
        at com.adventnet.servicedesk.tools.SDBackUp.process(SDBackUp.java:107)
        at com.adventnet.servicedesk.tools.SDBackUp.main(SDBackUp.java:2359)
c:\ManageEngine\ServiceDesk\bin>

I tried to reboot the server in hopes that something had the file locked.  The local administrator group has full access to SDPBackup.log file, and my account is a member of that local group.  I opened the file in Notepad and received no warnings about the file being locked.

Please tell me what to do.

Michael