Oracle Rib Item Subscriber failing with:"Name not found exception: " ApplicationMessageInjector

Oracle RIB 16.01;

SIM 14.1

Oracle Rib Item Subscriber failing with:"Name not found exception: " ApplicationMessageInjector.

Oracle Rib Item Subscriber failing with:"Name not found exception: " ApplicationMessageInjector. 

Caused by: java.lang.RuntimeException: Fatal Error while calling remote Ejb (Class).

This may be due to ANY one of these reasons

[1]. JNDI configuration may be incorrect please check the file (retail/remote_service_locator_info_*.xml).

[2]. Remote application or the Hosting app server may be down.

[3]. Network connectivity failure.

I have checked the rib-deployment-env-info.xml file. Everything is correct, and I can call the ApplicationMessageInjector programmatically, but it is failing constantly.

Any help would be appreciated.