pivot4j Null pointer exception

[Manu Wilson]

While running pivot4j in tomcat-eclipse.I got this error.Can anybody plz help me to resolve this.

ERROR [Pivot4JExceptionHandler] - Unhandled exception has occurred
java.lang.NullPointerException
    at org.pivot4j.analytics.listener.LocaleInitializer.afterPhase(LocaleInitializer.java:57) ~[classes/:?]
    at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersAfter(PhaseListenerManager.java:117) ~[myfaces-impl-2.2.3.jar:2.2.3]
    at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:211) [myfaces-impl-2.2.3.jar:2.2.3]
    at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:143) [myfaces-impl-2.2.3.jar:2.2.3]
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198) [myfaces-api-2.2.3.jar:2.2.3]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) [catalina-6.0.29.jar:6.0.29]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [catalina-6.0.29.jar:6.0.29]
    at org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:67) [log4j-web-2.0.2.jar:2.0.2]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) [catalina-6.0.29.jar:6.0.29]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [catalina-6.0.29.jar:6.0.29]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) [catalina-6.0.29.jar:6.0.29]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) [catalina-6.0.29.jar:6.0.29]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [catalina-6.0.29.jar:6.0.29]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [catalina-6.0.29.jar:6.0.29]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [catalina-6.0.29.jar:6.0.29]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) [catalina-6.0.29.jar:6.0.29]
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) [coyote-6.0.29.jar:6.0.29]
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) [coyote-6.0.29.jar:6.0.29]
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) [coyote-6.0.29.jar:6.0.29]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]