Firewall Analyser 4.0 (Build No. 4002) pdf report error

Hello Support,

I have installed Firewall Analyser Ver 4.0 (Build No. 4002) and configured Firewall to send syslog message to inbuild syslog server of analyser. It display the live report but not able to export the report in pdf or csv format. Whenever i open the pdf report it gives an error message "There was an error opening this document. A file read error has occured".

Web usage report gives an exception error for Apache as below :

[[type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

java.lang.NullPointerException
com.adventnet.webclient.components.table.HeaderDataTag.doStartTag(HeaderDataTag.java:81)
com.adventnet.fa.jsp.WEB_002dINF.jsp.DashboardReport_jsp._jspService(DashboardReport_jsp.java:552)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274)
org.apache.struts.action.RequestProcessor.internalModuleRelativeForward(RequestProcessor.java:1012)
org.apache.struts.tiles.TilesRequestProcessor.internalModuleRelativeForward(TilesRequestProcessor.java:345)
org.apache.struts.action.RequestProcessor.processForward(RequestProcessor.java:582)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:260)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)

note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs. ]]

Same is the case with FTP usage error it to gives apache error.

Kindly help me to resolve the issue at earliest.