exporting reports

Hello!
I have a problem with export of my reports - error after export to excel button or any other format. details bellow. please advice how to resolve it.

Message

Dear user,

Unable to generate the report, So please contact servicedesk support for further assistance to resolve the issue and forward this mail and support file(s) to

support@servicedeskplus.com

Error Trace

net.sf.jasperreports.engine.JRException: Error writing to file writer : ManageEngine Report Framework at net.sf.jasperreports.engine.export.JRAbstractCsvExporter.exportReport(JRAbstractCsvExporter.java:215) at com.adventnet.servicedesk.reports.utils.CoreReportDesigner.generateSQLReport(CoreReportDesigner.java:8343) at com.adventnet.servicedesk.reports.utils.CoreReportDesigner.generateSQLReport(CoreReportDesigner.java:7919) at com.adventnet.servicedesk.reports.action.ReportRequestHandler.export(ReportRequestHandler.java:658) at com.adventnet.servicedesk.reports.action.CustomReportHandler.export(CustomReportHandler.java:245) at com.adventnet.servicedesk.reports.action.ReportRequestHandler.handleRequest(ReportRequestHandler.java:1863) at com.adventnet.servicedesk.reports.action.CustomReportHandler.handleRequest(CustomReportHandler.java:179) at com.adventnet.servicedesk.reports.action.ReportHandler.execute(ReportHandler.java:61) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at com.manageengine.servicedesk.common.filter.ResetThreadLocal.doFilter(ResetThreadLocal.java:26) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at com.adventnet.servicedesk.filter.EncodingFilter.doFilter(EncodingFilter.java:196) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:350) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at com.adventnet.servicedesk.authentication.NTLMV2CredentialAssociationFilter.doFilter(NTLMV2CredentialAssociationFilter.java:34) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at com.adventnet.servicedesk.authentication.NTLMV2Filter.doFilter(NTLMV2Filter.java:178) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:66) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:158) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at com.adventnet.authentication.CredentialAssociation.invoke(CredentialAssociation.java:75) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at com.adventnet.client.util.LoginParameters.invoke(LoginParameters.java:53) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at com.adventnet.servicedesk.tools.AuthenticateNtlm.invoke(AuthenticateNtlm.java:203) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:444) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) at java.lang.Thread.run(Unknown Source) Caused by: java.io.FileNotFoundException: /var/www.csv/desk/ServiceDesk/applications/extracted/AdventNetServiceDesk.eear/AdventNetServiceDeskWC.ear/AdventNetServiceDesk.war/_3_2015_03_22_16_43_44.csv (No such file or directory) at java.io.FileOutputStream.open(Native Method) at java.io.FileOutputStream.(Unknown Source) at java.io.FileOutputStream.(Unknown Source) at net.sf.jasperreports.engine.export.JRAbstractCsvExporter.exportReport(JRAbstractCsvExporter.java:209) ... 69 more