Make sure you are following Installation Guide:
Additional Environment Variables for Deployment
1). If the EMS server and OMS are deployed on different machines, then following configuration needs to be done for proper deployment of omsServer:
a). Copy the files tibjms.jar, tibcrypt.jar and jms-2.0.jar to a folder. These files are typically located at $EMS_HOME/lib folder.
b). Set the environment variable EMS_LIB_PATH to this folder location.