Unique constraint (JIVE.JIVEUSERPROP_PK) violated?

This is showing up on our error log. Any ideas:?

java.sql.SQLException: ORA-00001: unique constraint (JIVE.JIVEUSERPROP_PK) violated

at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)

at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)

at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:582)

at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1986)

at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:1144)

at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:2152)

at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:2035)

at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:28 76)

at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatemen t.java:609)

at org.jivesoftware.wildfire.user.User.insertProperty(User.java:398)

at org.jivesoftware.wildfire.user.User.access$300(User.java:39)

at org.jivesoftware.wildfire.user.User$PropertiesMap.put(User.java:306)

at org.jivesoftware.wildfire.spi.PresenceManagerImpl.userUnavailable(PresenceManag erImpl.java:174)

at org.jivesoftware.wildfire.handler.PresenceUpdateHandler.process(PresenceUpdateH andler.java:120)

at org.jivesoftware.wildfire.handler.PresenceUpdateHandler.process(PresenceUpdateH andler.java:151)

at org.jivesoftware.wildfire.SessionManager$ClientSessionListener.onConnectionClos e(SessionManager.java:1297)

at org.jivesoftware.wildfire.net.SocketConnection.notifyCloseListeners(SocketConne ction.java:516)

at org.jivesoftware.wildfire.net.SocketConnection.close(SocketConnection.java:360)

at org.jivesoftware.wildfire.SessionManager.stop(SessionManager.java:1479)

at org.jivesoftware.wildfire.XMPPServer.shutdownServer(XMPPServer.java:767)

at org.jivesoftware.wildfire.XMPPServer.access$600(XMPPServer.java:82)

at org.jivesoftware.wildfire.XMPPServer$ShutdownHookThread.run(XMPPServer.java:726 )

2006.02.27 17:44:10 [org.jivesoftware.wildfire.ldap.LdapUserProvider.getUserCount(LdapUserProvider. java:137)

]