After restart of windchill server, we are facing issue, Windchill blue screen is coming no navigation bar is seen?
attached is log file
2016-10-31 15:13:56,897 INFO [NmActionService.initXml] com.ptc.netmarkets.util.misc.StandardNmActionService.xmlInit - Started initializeXML()
2016-10-31 15:13:59,129 WARN [NmActionService.initXml] wt.method.server - Uncaught exception on thread: "NmActionService.initXml" [id=35]
java.lang.ArrayIndexOutOfBoundsException: 7602276
at java.util.ArrayList.elementData(ArrayList.java:409)
at java.util.ArrayList.get(ArrayList.java:422)
at org.apache.xerces.dom.DeepNodeListImpl.item(Unknown Source)
at org.apache.xerces.dom.DeepNodeListImpl.getLength(Unknown Source)
at com.ptc.netmarkets.util.misc.StandardNmActionService.getNewAction(StandardNmActionService.java:2010)
at com.ptc.netmarkets.util.misc.StandardNmActionService.parseActionXML(StandardNmActionService.java:1409)
at com.ptc.netmarkets.util.misc.StandardNmActionService.initializeXML(StandardNmActionService.java:3160)
at com.ptc.netmarkets.util.misc.StandardNmActionService$1.run(StandardNmActionService.java:455)
2016-10-31 15:13:59,563 INFO [main] wt.method.server.startup - Classification Service started successfully.
2016-10-31 15:14:16,018 INFO [main] wt.pom.statementCache.summary - StatementCache: wt.util.Cache%20842947 [size=50, count=50, hits=4001, misses=225, overflows=173]
2016-10-31 15:14:16,644 INFO [commonScheduleQueue.SchedulingThread] wt.pds.passwordexpiry.PasswordExpiryWarningService Administrator - Datastore password expiry warnings will commence 15 days in advance of expiration. (Configurable via property: wt.pds.passwordExpirationChecking.days)
31 15:14:44,438 INFO [localhost-startStop-1] org.springframework.web.servlet.DispatcherServlet - FrameworkServlet 'MVCDispatcher': initialization started
2016-10-31 15:15:19,391 INFO [localhost-startStop-1] org.springframework.web.servlet.DispatcherServlet - FrameworkServlet 'MVCDispatcher': initialization completed in 34952 ms
2016-10-31 15:15:19,500 INFO [Servlet engine main] com.ptc.tomcat.embedded.Bootstrap - Servlet engine ready; catalina.base=/opt/ptc/Windchill_10.2/Windchill/tomcat/instances/instance-8010
2016-10-31 15:15:19,502 INFO [main] wt.method.server.startup - MethodServer ready (in 192.159 secs).
2016-10-31 15:15:19,502 WARN [main] wt.method.server.startup -
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JMX-Administrators EMAIL LIST HAS NOT BEEN POPULATED!
SYSTEM HEALTH NOTIFICATIONS WILL NOT BE SENT!
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2016-10-31 15:15:26,784 ERROR [ajp-bio-8010-exec-1] com.ptc.jca.navigation orgadmin - problem getting the main navigation action model
(com.ptc.netmarkets.util.misc.miscResource/400) com.ptc.netmarkets.model.NmException: actionmodels.xml file is missing an entry called navigator. Please add the model and restart the server.
at com.ptc.netmarkets.util.misc.StandardNmActionService.getActionModelFromNameToModelMap(StandardNmActionService.java:4501)
at com.ptc.netmarkets.util.misc.StandardNmActionService.getActionModel(StandardNmActionService.java:563)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at wt.services.ServiceFactory$ServerInvocationHandler.invoke(ServiceFactory.java:399)
at com.sun.proxy.$Proxy52.getActionModel(Unknown Source)
at com.ptc.windchill.enterprise.navigation.delegates.DefaultNavigationListDelegate.getActionModel(DefaultNavigationListDelegate.java:229)
at com.ptc.windchill.enterprise.navigation.delegates.DefaultNavigationListDelegate.getJSONForShell(DefaultNavigationListDelegate.java:591)
at org.apache.jsp.WEB_002dINF.jsp.shell_jsp._jspService(shell_jsp.java:190)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at