Resolution:
If you shut down the database before you shut down InConcert server, you will get this error.
InConcert server does not automatically reconnect to the database before TIBCO InConcert version 7.1, once it has lost connection to the database.

You need to restart InConcert server in order to get connected to the database again.  The Event Action Daemon will try to reconnect on the next polling cycle.  See release notes of 7.1 for more details.

The Oracle error translates as:
ORA-03114 not connected to ORACLE

Cause:A call to ORACLE was attempted when no connection was established. Usually this happens because a user-written program has not logged on. It may also happen if communication trouble causes a disconnection.

Action:Try again. If the message recurs and the program is user-written, check the program.

With TIBCO InConcert 7.1 the worker will try to reconnect once and every time a new API is received.