Reports not running

I have scheduled some capacity and performance reports from the v-bundle. When running I have them setup to use the last 2 months using auto granularity (Last N, Month, 2, Auto). None of the reports seem to run and the following is posted to the log:
2011-02-28 00:32:22.049 ERROR [QuartzScheduler.Reporting_Worker-2] com.quest.nitro.webconsole.reporting.WCFReportHandler - An error occurred while executing WCF report system:bundle-1.170. HTTP status code = 500.
2011-02-28 00:32:22.049 ERROR [QuartzScheduler.Reporting_Worker-2] com.quest.nitro.service.reporting.ReportingService - An error has occurred while running report "WCF" (system:bundle-1.170).
java.lang.RuntimeException: java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8080/console/common/error/handleGeneralError.action?originalRequestUri=%2Fconsole%2Fpdf%2Fsystem%3Abundle-1.170&statusCode=500
at com.quest.nitro.webconsole.reporting.WCFReportHandler.executeReport(WCFReportHandler.java:387)
at com.quest.nitro.service.reporting.ReportingService.internalExecuteReport(ReportingService.java:544)
at com.quest.nitro.service.reporting.ReportingService.internalGenerateReport(ReportingService.java:476)
at com.quest.nitro.service.reporting.ReportingService.runReport(ReportingService.java:450)
at com.quest.nitro.service.reporting.ReportingService$ReportRunner.execute(ReportingService.java:889)
at com.quest.nitro.service.scheduler.QuartzSchedulerService$ScheduleJob.execute(QuartzSchedulerService.java:462)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:525)
Caused by: java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8080/console/common/error/handleGeneralError.action?originalRequestUri=%2Fconsole%2Fpdf%2Fsystem%3Abundle-1.170&statusCode=500
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1368)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1362)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1016)
at com.quest.nitro.webconsole.reporting.WCFReportHandler.executeReport(WCFReportHandler.java:381)
... 7 more
Caused by: java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8080/console/common/error/handleGeneralError.action?originalRequestUri=%2Fconsole%2Fpdf%2Fsystem%3Abundle-1.170&statusCode=500
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1313)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:373)
at com.quest.nitro.webconsole.reporting.WCFReportHandler.executeReport(WCFReportHandler.java:376)

What is the best way to set about debugging and get useful capacity trending reporting?