Messages are struck in RIB in V16 not flowing to SIM v16

Hi,

Messages are struck in RIB not flowing to SIM with below error.

I have checked remote_service_locator_info_ribserver.xml under ....../rib_home/application-assembly-home/rib-sim/retail and rib-deployment-env-info.xml under .../rib_home/deployment-home/conf, it seems to be SIM configuration files are correct in both the ends.

-->rib-deployment-env-info.xml

<wls id="rib-sim-wls1">

          <wls-instance-name>rib-sim</wls-instance-name>

          <wls-instance-home>orawls@hostname:/u01/app/orawls/12.2.1/user_projects/domains/rib_domain/servers/rib-sim</wls-instance-home>

          <wls-listen-port protocol="http">7057</wls-listen-port>

          <wls-user-alias>rib-sim_wls_user-name-alias</wls-user-alias>

        </wls>

<rib-app id="rib-sim" type="javaee-app">

      <deploy-in refid="rib-sim-wls1"/>

      <rib-admin-gui>

        <web-app-url>http://hostname:7057/rib-sim-appserver-gui/index.jsp</web-app-url>

        <web-app-user-alias>rib-sim_rib-admin-gui_user-name-alias</web-app-user-alias>