Alguem pode mi ajuda nesse erro não faço a minima ideia do que seja... JSF

<?xml version="1.0" encoding="utf-8"?>
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:a4j="http://richfaces.org/a4j"
	xmlns:rich="http://richfaces.org/rich"
	xmlns:ui="http://java.sun.com/jsf/facelets"
	xmlns:alga="http://www.algaworks.com/dwjsf"
	template="/telaPadrao.jspx">

<ui:define name="menu">
Ajuda do cadastro
</ui:define>

<ui:define name="corpo">
	<h:form id="frm">
		
		<rich:tabPanel>
			<rich:tab label="Dados básicos" switchType="client">
		
				<h:messages layout="table" showSummary="true" showDetail="false"
					globalOnly="true" styleClass="msgErro" infoClass="msgInfo"
					style="font-weight: bold" />
					
				<h:panelGrid columns="2">
					
					<h:outputLabel value="Código:"
						rendered="#{cadastroContaBean.conta.id != null}" />
						
					<h:panelGroup rendered="#{cadastroContaBean.conta.id != null}">
					
						<h:inputText id="codigo" size="10"
							value="#{cadastroContaBean.conta.id}" label="Código da conta"
							disabled="true" />
						<h:message for="codigo" showSummary="true" showDetail="false"
							styleClass="msgErro" />
					</h:panelGroup>
					
					
					<h:outputLabel value="Pessoa:" />
					<h:panelGroup>
						<h:selectOneMenu id="pessoa"
							value="#{cadastroContaBean.conta.pessoa}" label="Pessoa"
							required="true">
							<f:selectItems value="#{cadastroContaBean.pessoas}" />
						</h:selectOneMenu>
						<h:message for="pessoa" showSummary="true" showDetail="false"
							styleClass="msgErro" />
					</h:panelGroup>
					
					<h:outputLabel value="Tipo:" />
					<h:panelGroup>
						<h:selectOneRadio id="tipo"
							value="#{cadastroContaBean.conta.tipoConta}" label="Tipo da conta"
							required="true">
							<f:selectItems value="#{cadastroContaBean.tiposConta}" />
						</h:selectOneRadio>
						<h:message for="tipo" showSummary="true" showDetail="false"
							styleClass="msgErro" />
					</h:panelGroup>
					
					<alga:labelInputText value="#{cadastroContaBean.conta.descricao}" 
						label="Descrição222"/>
					

					
					<h:outputLabel value="Valor:" />
					<h:panelGroup>
						<h:inputText id="valor" size="12" maxlength="10"
							value="#{cadastroContaBean.conta.valor}" required="true"
							label="Valor"
							readonly="#{not rich:isUserInRole('altera_valor')}">
							<f:convertNumber minFractionDigits="2" />
						</h:inputText>
						<h:message for="valor" showSummary="true" showDetail="false"
							styleClass="msgErro" />
					</h:panelGroup>
					<h:outputLabel value="Data vencimento:" />
					<h:panelGroup>
						
						
						<rich:calendar id="dataVencimento" inputSize="12" 
							datePattern="dd/MM/yyyy" enableManualInput="true"
							value="#{cadastroContaBean.conta.dataVencimento}" 
							required="true" label="Data vencimento"/>
						
						
						
						<h:message for="dataVencimento" showSummary="true"
							showDetail="false" styleClass="msgErro" />
					</h:panelGroup>
					<h:outputLabel value="Data baixa:" />
					<h:panelGroup>
						<h:inputText id="dataBaixa" size="12" maxlength="10"
							value="#{cadastroContaBean.conta.dataBaixa}"
							label="Data baixa">
							<f:convertDateTime pattern="dd/MM/yyyy" />
						</h:inputText>
						<h:message for="dataBaixa" showSummary="true" showDetail="false"
							styleClass="msgErro" />
					</h:panelGroup>
					<h:panelGroup />
					
					<h:panelGroup>
						<a4j:commandButton value="Salvar" 
							action="#{cadastroContaBean.salvar}" reRender="frm"/>
							
						<h:commandButton value="Cancelar" action="menu" immediate="true" />
					</h:panelGroup>
					
				</h:panelGrid>
		
		</rich:tab>
		
		<rich:tab label="Outros" switchType="client">
		
			<h:inputTextarea rows="10" cols="25"/>
		
		</rich:tab>
		
		</rich:tabPanel>
	</h:form>
	
	<h:form>
		<a4j:commandButton value="Novo" actionListener="#{cadastroContaBean.limpar}" 
			immediate="true" />
	</h:form>
	
	</ui:define>
	
</ui:composition>

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:a4j="http://richfaces.org/a4j"
	xmlns:rich="http://richfaces.org/rich"
	xmlns:ui="http://java.sun.com/jsf/facelets">
<head>
<title>Cadastro de conta</title>
<link rel="stylesheet" type="text/css" href="estilos/geral.css" />
</head>
<body>
<f:view>

	<h:panelGrid columns="2">
		<h:graphicImage value="/imagens/logo.jpg"/>
		
		<h1>Sistema Financeiro - Bem vindo 
		<!-- #{facesContext.externalContext.userPrincipal.name} Não sei pra que serve e dá erro  --></h1>
		
		<h:outputText/>
		<h:outputLink value="logout.jsp">
			<h:outputText value="Logout"/>
		</h:outputLink>
		
	</h:panelGrid>
	
	<h:panelGrid columns="2" width="100%">
		<h:panelGroup>
			Cadastro <br/> Consulta <br/> Relatório<br/>
			
			<ui:insert name="menu"/>
		</h:panelGroup>	

		<h:panelGroup>
			<ui:insert name="corpo"/>
		</h:panelGroup>
		
	
	</h:panelGrid>
	
	<br/>
	Todos os direitos reservados.
	
</f:view>
</body>
</html>