Error in jasper analisys

[minnoleo]

I'm running a production system with debian 4.0 and jasperserver 3.1, I have the following error:

javax.servlet.jsp.el.ELException: An error occurred while getting property "result" from an instance of class com.tonbeller.jpivot.tags.OlapModelProxy

javax.servlet.jsp.el.ELException: An error occurred while getting property "result" from an instance of class com.tonbeller.jpivot.tags.OlapModelProxy	at org.apache.commons.el.Logger.logError(Logger.java:484)	at org.apache.commons.el.Logger.logError(Logger.java:588)	at org.apache.commons.el.ArraySuffix.evaluate(ArraySuffix.java:318)	at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)	at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:264)	at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:190)	at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:917)	at org.apache.jsp.WEB_002dINF.jsp.olap.viewOlap_jsp._jspx_meth_c_if_2(viewOlap_jsp.java:1504)	at org.apache.jsp.WEB_002dINF.jsp.olap.viewOlap_jsp._jspService(viewOlap_jsp.java:231)	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)	at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)	at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:142)	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:247)	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1105)	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:841)	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:755)	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:396)	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:350)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.tonbeller.wcf.controller.RequestFilter$MyHandler.normalRequest(RequestFilter.java:140)	at com.tonbeller.wcf.controller.RequestSynchronizer.handleRequest(RequestSynchronizer.java:127)	at com.tonbeller.wcf.controller.RequestFilter.doFilter(RequestFilter.java:267)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.jaspersoft.jasperserver.war.common.UploadMultipartFilter.doFilter(UploadMultipartFilter.java:86)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:264)	at org.acegisecurity.ui.switchuser.SwitchUserProcessingFilter.doFilter(SwitchUserProcessingFilter.java:335)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107)	at org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:110)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at com.jaspersoft.jasperserver.api.metadata.user.service.impl.MetadataAuthenticationProcessingFilter.doFilter(MetadataAuthenticationProcessingFilter.java:141)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at com.jaspersoft.jasperserver.war.util.RequestParameterAuthenticationFilter.doFilter(RequestParameterAuthenticationFilter.java:97)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:181)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at com.jaspersoft.jasperserver.war.UserPreferencesFilter.doFilter(UserPreferencesFilter.java:165)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:217)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at com.jaspersoft.jasperserver.war.UserPreferencesFilter.doFilter(UserPreferencesFilter.java:165)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:191)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)	at org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:148)	at org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:90)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.jaspersoft.jasperserver.war.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:70)	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)	at java.lang.Thread.run(Thread.java:595)

Can anyone help me?

Thanks in advance to anyone can help me.