Erro ao Executar o JSP

Olá amigos estou com um erro no JSP na hora em que vou executar ele gera:

HTTP Status 500 -


type Exception report

message

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

exception

javax.servlet.ServletException: Missing message for key “insertUser.title”
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
org.apache.jsp.InsertUser_jsp._jspService(InsertUser_jsp.java:368)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)

root cause

javax.servlet.jsp.JspException: Missing message for key “insertUser.title”
org.apache.struts.taglib.bean.MessageTag.doStartTag(MessageTag.java:233)
org.apache.jsp.InsertUser_jsp._jspx_meth_bean_message_0(InsertUser_jsp.java:384)
org.apache.jsp.InsertUser_jsp._jspService(InsertUser_jsp.java:131)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.9 logs.


Apache Tomcat/5.5.9

meu codigo esta assim:

<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>

<html:html locale="true">
    <head>
        <title><bean:message key="insertUser.title"/></title>
        <html:base/>
    </head>
    <body bgcolor="white">
        <font face="Comic Sans MS" size="3">
            <center>
                <h3><font color="blue"><bean:message key="insertUser.title"/></font></h3>
                <html:form action="/saveInsertUser.do" method="post" onsubmit="return validadeSaveInsertUserForm(this);"
                    focus="idUsuario">
                    <table width="80%" border="0">
                    <tr>
                    <td width="30%"></td>
                    <td width="70%">
                        <%--- exibe os erros de validaçao ---%>
                        <logic:messagesPresent>
                            <ul>
                                <html:messages id="error">
                                    <li><bean:write name="error"/></li>
                                </html:messages>
                            </ul>
                        </logic:messagesPresent>
                    </td>
                    <tr>
                    <tr>
                    <td align="right"><bean:message key="prompt.idUsuario" name="insertUsuarioBean"/>:<td/>
                        <logic:equal name="insertUserBean" property="idUsuario" value="0">
                            <td align="left"><html:text property="idUsuario" size="15" value=""/></td>
                        </logic:equal>
                        <logic:notEqual name="insertUserBean" property="idUsuario" value="0">
                            <td align="left"><html:text property="idUsuario" size="5" name="insertUserBean"/></td>
                        </logic:notEqual>
                    </td>
                    </td>
                    <tr>
                        <td align="right"><bean:message key="prompt.login"/>: </td> 
                        <td align="left"><html:text property="usuario" size="20" name="insertUserBean"/></td>
                    </tr>
                    <tr>
                        <td align="right"><bean:message key="prompt.nome"/>: </td> 
                        <td align="left"><html:text property="usuario" size="60" name="insertUserBean"/></td>
                    </tr>    
                    <tr>
                        <td align="right"><bean:message key="prompt.senha"/>: </td>
                        <td align="left">
                            <html:password property="senha" style="width:330px;" maxlength="20" redisplay="false"/>
                        </td>
                    </tr>
                    <tr>
                        <td align="right"><bean:message key="prompt.confirmacaoSenha"/>: </td>
                        <td align="left">
                            <html:password property="confirmacaoSenha" style="width:330px;" maxlength="20" redisplay="false"/>
                        </td>
                    </tr>
                    <tr>    
                        <td alilgn="right"><bean:message key="prompt.faixaIdade"/>: </td>
                        <td align="left">
                            <html:select property="faixaIdade" name="insertUserBean">
                                <html:option value="1"><bean:message key="prompt.ate20"/></html:option>
                                <html:option value="2"><bean:message key="prompt.de21a30"/></html:option>
                                <html:option value="1"><bean:message key="prompt.de31a40"/></html:option>
                                <html:option value="1"><bean:message key="prompt.de41a50"/></html:option>
                                <html:option value="1"><bean:message key="prompt.de51a60"/></html:option>
                                <html:option value="1"><bean:message key="prompt.acima60"/></html:option>
                            </html:select>
                        </td>
                    </tr>
                    <tr>
                        <td align="right"><bean:message key="prompt.sexo"/></td>
                        <td align="left">
                            <html:radio property="sexo" value="M" name="inserUserBean">
                                <bean:message key="prompt.Masculino"/>
                            </html:radio>
                            <html:radio property="sexo" value="F" name="inserUserBean">
                                <bean:message key="prompt.Feminino"/>
                            </html:radio>
                        </td>
                    </tr>
                    <tr>
                    <td align="right"><bean:message key="prompt.ativo"/></td>
                    <td align="left">
                        <html:checkbox property="ativo" titleKey="prompt.ativo" name="insertUserBean"/>
                    </td>
                    <tr>
                    <tr>
                    <td colspan="2" align="center">
                        <html:submit><bean:message key="button.send"/></html:submit>
                        <html:submit><bean:message key="button.resend"/></html:submit>
                    </td>
                    <tr>
                </html:form>
                <br/>
                <html:link page="/listUsers.do">Voltar</html:link>
            </center>
        </font>
    </body>
    <html:javascript formName="saveInsertUserForm"/>
</html:html>

por favor se alguem puder me ajudar eu agradeço.

Help Amigos.