This could be because the command to start the EMS server has been changed in the 5.1.4 version. In EMS version 4.x the command to start EMS was "./tibemsd". In EMS v5.1.4 the command is "./tibemsd64 -config ../tibco/cfgmgmt/ems/data/tibemsd.conf". The command uses relative path and it should be executed from "<TIBCO_HOME>\ems\<version>\bin".

To resolve this problem stop the process started by the command:

and start the ems server with correct command: