Http 500 error

I have recently downloaded the ManageEnging ServiceDesk application, the free version, to demo the product form my major client. I have it setup but in editing the Categories remotely, I have consistently received the following msg/report. It's important I get this fixed as I am supposed to demo it within 24 hours. You can login below as default administrator.

-http://w-wizards.com:8080

type Exception report

message

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

exception

javax.servlet.ServletException: CustomViewException when processing cvrequest 
 org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:545)
 org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:486)
 org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
 org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
 org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 com.adventnet.servicedesk.filter.EncodingFilter.doFilter(EncodingFilter.java:109)
 org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:350)
 com.adventnet.servicedesk.authentication.NTLMV2CredentialAssociationFilter.doFilter(NTLMV2CredentialAssociationFilter.java:35)
 com.adventnet.servicedesk.authentication.NTLMV2Filter.doFilter(NTLMV2Filter.java:107)
 org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)

root cause

com.adventnet.customview.CustomViewException: CustomViewException when processing cvrequest 
 com.adventnet.customview.ejb.interceptor.BeanProxyInterceptor.process(BeanProxyInterceptor.java:189)
 com.adventnet.customview.service.DefaultClientServiceProvider.process(DefaultClientServiceProvider.java:55)
 com.adventnet.customview.table.update.ClientTableUpdateServiceProvider.process(ClientTableUpdateServiceProvider.java:86)
 com.adventnet.customview.service.i18n.I18nServiceProvider.process(I18nServiceProvider.java:48)
 com.adventnet.customview.ejb.interceptor.BeanProxyInterceptor.invoke(BeanProxyInterceptor.java:99)
 org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
 com.adventnet.authentication.interceptor.ClientPrincipalAssociator.invoke(ClientPrincipalAssociator.java:47)
 org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:100)
 org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
 $Proxy88.getData(Unknown Source)
 com.adventnet.servicedesk.query.util.HdAdminSelectQueryUtil.getCVModel(HdAdminSelectQueryUtil.java:71)
 com.adventnet.servicedesk.query.util.HdAdminSelectQueryUtil.getSubCategoryCVModel(HdAdminSelectQueryUtil.java:97)
 com.adventnet.servicedesk.setup.action.CategoryDefAction.execute(CategoryDefAction.java:385)
 org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
 org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
 org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
 org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 com.adventnet.servicedesk.filter.EncodingFilter.doFilter(EncodingFilter.java:109)
 org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:350)
 com.adventnet.servicedesk.authentication.NTLMV2CredentialAssociationFilter.doFilter(NTLMV2CredentialAssociationFilter.java:35)
 com.adventnet.servicedesk.authentication.NTLMV2Filter.doFilter(NTLMV2Filter.java:107)
 org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)