ORA-02391: exceeded SESSIONS_PER_USER limit

Error:

When starting Adeptia, we are receiving the following error in the WebrunnerApplication.log file

Failed to connect to Backend Database. Performing retries[null]|localhost|
2014-12-19 13:27:38 java.lang.reflect.InvocationTargetException

Caused by: org.exolab.castor.jdo.PersistenceException: Nested error: org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit
2014-12-19 13:27:38 ): Cannot create PoolableConnectionFactory (ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit

Cause:

Your oracle database is throwing a ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit error, indicating that the number of sessions created by the user connecting to the Oracle database is past the limit set.

Solution:

Try increasing the SESSIONS_PER_USER limit of the user connecting to the oracle database.