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com.liferay.portal.security.auth.PrincipalException: Invalid authentication token	at com.liferay.portal.security.auth.SessionAuthToken.checkCSRFToken(SessionAuthToken.java:83)	at com.liferay.portal.security.auth.AuthTokenWrapper.checkCSRFToken(AuthTokenWrapper.java:44)	at com.liferay.portal.security.auth.AuthTokenUtil.checkCSRFToken(AuthTokenUtil.java:40)	at com.liferay.portal.struts.JSONAction.checkAuthToken(JSONAction.java:163)	at com.liferay.portal.struts.JSONAction.execute(JSONAction.java:76)	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)	at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:173)	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)	at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:546)	at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:523)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)	at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:359)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)	at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)	at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:293)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)	at com.liferay.portal.servlet.filters.jsoncontenttype.JSONContentTypeFilter.processFilter(JSONContentTypeFilter.java:42)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)	at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)	at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:88)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)	at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:226)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:185)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)	at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:165)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:165)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:185)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:96)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:722)