WSO2 EI 6.3.0 Log Error while loading the registry resource - wso2

Question

I have a proxy in WSO2 Enterprise Integrator 6.3.0 with endpoint configured in conf registry. Sometimes I receive errors in this proxy with message in LOG:
[2018-09-12 09:33:22,542] [-1234] [] [SynapseWorker-11] ERROR {org.apache.synapse.config.xml.endpoints.LoadbalanceEndpointFactory} - Invalid endpoint configuration.
[2018-09-12 09:33:22,542] [-1234] [] [SynapseWorker-11] WARN {org.apache.synapse.config.SynapseConfiguration} - Error while loading the resource conf:services/corp/servicev1/endpoint/ERPEndpoint.xml from the remote registry. Previously cached value will be used. Check the registry accessibility.
[2018-09-12 09:33:22,545] [-1234] [] [SynapseWorker-11] INFO {org.apache.axis2.transport.http.HTTPSender} - Unable to sendViaPost to url[http://...address ommited...]
java.net.SocketException: Connection reset
It seems to me it doesn't catch the endpoint of registry or cache.
PS: In my registry the address endpoint is with dns name and when this error occurs the address endpoint appears with IP address.
How to fix this?
Below the sequence and endpoint:
<sequence name="PessoaService_inserirPessoaFisicaNacionalV1_MessageProcessorSequence" onError="PessoaService_GenericFaultHandlerSequence" trace="disable" xmlns="http://ws.apache.org/ns/synapse">
<property name="PROXY_NAME" scope="default" type="STRING" value="PessoaService_inserirPessoaFisicaNacionalV1_LocalProxy"/>
<property name="SERVICE_VERSION" scope="default" type="STRING" value="1.0"/>
<property expression="$header/wsa:MessageID" name="MessageIdConsumidor" scope="default" type="STRING" xmlns:wsa="http://www.w3.org/2005/08/addressing"/>
<property expression="$header/ns:ApplicationName" name="applicationName" scope="default" type="STRING" xmlns:ns="https://ws.apache.org/axis2"/>
<log level="custom">
<property name="PessoaService_inserirPessoaFisicaNacionalV1_MessageProcessorSequence" value="Started"/>
</log>
<enrich>
<source clone="true" type="envelope"/>
<target property="BODY_ORIGINAL" type="property"/>
</enrich>
<dblookup>
<connection>
<pool>
<dsName>ESB</dsName>
</pool>
</connection>
<statement>
<sql>
<![CDATA[select codigo_configuracao, cnpj_empresa from esb.codigo_configuracao where aplicacao = ? and tipo_pessoa = 'fisica']]>
</sql>
<parameter expression="get-property('applicationName')" type="CHAR"/>
<result column="codigo_configuracao" name="codigo_configuracao"/>
<result column="cnpj_empresa" name="cnpj_empresa"/>
</statement>
</dblookup>
<log level="custom">
<property expression="$ctx:codigo_configuracao" name="PessoaService_inserirPessoaFisicaNacionalV1 [codigo_configuracao]"/>
<property expression="$ctx:cnpj_empresa" name="PessoaService_inserirPessoaFisicaNacionalV1 [cnpj_empresa]"/>
<property expression="get-property('applicationName')" name="PessoaService_inserirPessoaFisicaNacionalV1 [applicationName]"/>
</log>
<call-template target="PessoaService_LoginTemplate">
<with-param name="username" value="username"/>
<with-param name="password" value="pass"/>
<with-param name="companyHandle" value="-1"/>
<with-param name="branchHandle" value="-1"/>
</call-template>
<xslt key="conf:services/corp/pessoaservicev1/transformation/InserirPessoaFisicaNacionalRequest_IntegrarRequestTransformation.xslt">
<property expression="$ctx:AuthenticationTokenId" name="AuthenticationTokenId"/>
<property expression="$ctx:cnpj_empresa" name="cnpjEmpresa"/>
<property expression="$ctx:codigo_configuracao" name="codigoConfiguracao"/>
</xslt>
<log level="custom">
<property expression="$body" name="PessoaService_inserirPessoaFisicaNacionalV1_MessageProcessorSequence [request ERP]"/>
</log>
<enrich>
<source clone="true" type="body"/>
<target property="RequestERP" type="property"/>
</enrich>
<header action="remove" name="Action" scope="default"/>
<header name="Action" scope="default" value="http://.com.br/corporativo/PessoaService/Pessoa/Integrar"/>
<property expression="get-property('registry', 'conf:services/corp/pessoaservicev1/parameters/endpointCallback.properties')" name="endpointCallback" scope="default" type="STRING"/>
<payloadFactory media-type="xml">
<format>
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
<soap:Header xmlns:wsa="http://www.w3.org/2005/08/addressing">
<wsa:Action>$1</wsa:Action>
<wsa:ReplyTo>
<wsa:Address>$2</wsa:Address>
</wsa:ReplyTo>
<wsa:MessageID>$3</wsa:MessageID>
</soap:Header>
<soap:Body>$4</soap:Body>
</soap:Envelope>
</format>
<args>
<arg value="http://.com.br/corporativo/PessoaService/Pessoa/Integrar"/>
<arg evaluator="xml" expression="$ctx:endpointCallback"/>
<arg evaluator="xml" expression="get-property('MessageID')"/>
<arg evaluator="xml" expression="$body/pes:Integrar" xmlns:pes="http://.com.br/corporativo/PessoaService"/>
</args>
</payloadFactory>
<call blocking="true">
<endpoint key="conf:services/corp/pessoaservicev1/endpoint/ERPEndpoint.xml"/>
</call>
<log level="custom">
<property expression="$body" name="PessoaService_inserirPessoaFisicaNacionalV1_MessageProcessorSequence [ERP Response]"/>
</log>
<filter xmlns:ns="http://.com.br/corporativo/PessoaService" xpath="$body//ns:CodigoRetorno = 'ProcessamentoOK'">
<then>
<call-template target="PessoaService_LogoutTemplate">
<with-param name="AuthenticationTokenId" value="{$ctx:AuthenticationTokenId}"/>
</call-template>
</then>
<else>
<call-template target="PessoaService_LogoutTemplate">
<with-param name="AuthenticationTokenId" value="{$ctx:AuthenticationTokenId}"/>
</call-template>
<property expression="get-property('ReplyTo')" name="uri.var.full" scope="default" type="STRING"/>
<log level="custom">
<property expression="get-property('ReplyTo')" name="PessoaService_inserirPessoaFisicaNacionalV1_MessageProcessorSequence [Processamento NOK - callback endpoint]"/>
</log>
<call>
<endpoint key="conf:services/corp/pessoaservicev1/endpoint/CallbackDynamicEndpoint.xml"/>
</call>
</else>
</filter>
<payloadFactory media-type="xml">
<format>
<p:insert_smart_proxy_operation xmlns:p="http://ws.wso2.org/dataservice">
<p:message_id>$1</p:message_id>
<p:correlation_id>$2</p:correlation_id>
<p:to_address/>
<p:reply_address>$3</p:reply_address>
<p:message>$4</p:message>
<p:status>OK</p:status>
<p:data_processamento>$5</p:data_processamento>
<p:relates_to>$2</p:relates_to>
</p:insert_smart_proxy_operation>
</format>
<args>
<arg evaluator="xml" expression="get-property('MessageID')"/>
<arg evaluator="xml" expression="get-property('MessageIdConsumidor')"/>
<arg evaluator="xml" expression="get-property('endpointCallback')"/>
<arg evaluator="xml" expression="$ctx:RequestERP/*"/>
<arg evaluator="xml" expression="get-property('SYSTEM_DATE')"/>
</args>
</payloadFactory>
<log level="custom">
<property expression="$body" name="PessoaService_inserirPessoaFisicaNacionalV1 [SmartProxy Request]"/>
</log>
<header name="Action" scope="default" value="urn:insert_smart_proxy_operation"/>
<send>
<endpoint key="conf:services/corp/pessoaservicev1/endpoint/SmartProxyDSSEndpoint.xml"/>
</send>
</sequence>
Content of endpoint ERPEndpoint.xml in sequence above:
<endpoint name="BennerERPEndpoint" xmlns="http://ws.apache.org/ns/synapse">
<address uri="http://host/App_Services/PESSOAS/Service.svc/ws">
<enableAddressing/>
<timeout>
<duration>30000</duration>
<responseAction>fault</responseAction>
</timeout>
</address>
</endpoint>