we are getting below exception from pywaibreadcrumb OOTB section .How to resolve below exception ?

Section 'pyWAIBreadCrumb' execution error on page 'MyFlowPage1' of  class 'Rule-Obj-Flow'.;java.lang.NullPointerException; at com.pegarules.generated.html_section.ra_stream_pywaibreadcrumb_db89d69525f2ddc1764d6f17f4be7aa7.execute(ra_stream_pywaibreadcrumb_db89d69525f2ddc1764d6f17f4be7aa7.java:107); at com.pega.pegarules.session.internal.mgmt.Executable.getStream(Executable.java:4033); at com.pega.pegarules.session.internal.mgmt.autostreams.AutoStreamRuleRuntime.getSectionStream(AutoStreamRuleRuntime.java:149); at com.pegarules.generated.html_section.ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.includeSectionBody_2(ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.java:259); at com.pegarules.generated.html_section.ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.pzLayoutBodyWrapper_2(ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.java:248); at com.pegarules.generated.html_section.ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.pzLayout_2(ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.java:264); at com.pegarules.generated.html_section.ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.pzSectionBody_1(ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.java:215); at com.pegarules.generated.html_section.ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.execute(ra_stream_pzwaicontainer_855846b8bf0228eb1dbbe3e45420efbd.java:100); at com.pega.pegarules.session.internal.mgmt.StreamBuilderTools.appendStreamKeepProperties(StreamBuilderTools.java:717); at com.pega.pegarules.session.internal.mgmt.autostreams.IncludeStreamRuntime.getStream(IncludeStreamRuntime.java:332); at com.pega.pegarules.session.internal.mgmt.autostreams.IncludeStreamRuntime.emitIncludeStreamReference(IncludeStreamRuntime.java:252); at com.pega.pegarules.session.internal.mgmt.autostreams.AutoStreamRuntimeImpl.emitIncludeStreamReference(AutoStreamRuntimeImpl.java:358); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.sectionBodyIncludeInCell_1(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:375); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.simpleLayoutCell_1(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:396); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.simpleLayout_1(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:420); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.pzLayoutBodyWrapper_1(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:337); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.pzLayout_1(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:433); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.simpleLayoutCell_2(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:455); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.simpleLayout_3(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:504); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.pzLayoutBodyWrapper_3(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:231); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.pzLayout_3(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:518); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.pzSectionBody_1(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:220); at com.pegarules.generated.html_section.ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.execute(ra_stream_pzwaiviewer_wrapper_82bc72afca0b3701bfdcc412a9b59da4.java:100); at com.pega.pegarules.session.internal.mgmt.Executable.getStream(Executable.java:4033); at com.pega.pegarules.session.internal.mgmt.autostreams.AutoStreamRuleRuntime.getSectionStream(AutoStreamRuleRuntime.java:149); at com.pegarules.generated.html_harness.ra_stream_pzwaiviewer_popup_25a7e6aa9ad97288ad3be889e49aa1b4.includeSectionBody_3(ra_stream_pzwaiviewer_popup_25a7e6aa9ad97288ad3be889e49aa1b4.java:1539); at com.pegarules.generated.html_harness.ra_stream_pzwaiviewer_popup_25a7e6aa9ad97288ad3be889e49aa1b4.generatePegaHarnessDiv_6(ra_stream_pzwaiviewer_popup_25a7e6aa9ad97288ad3be889e49aa1b4.java:600); at com.pegarules.generated.html_harness.ra_stream_pzwaiviewer_popup_25a7e6aa9ad97288ad3be889e49aa1b4.executeStream_2(ra_stream_pzwaiviewer_popup_25a7e6aa9ad97288ad3be889e49aa1b4.java:3933); at com.pegarules.generated.html_harness.ra_stream_pzwaiviewer_popup_25a7e6aa9ad97288ad3be889e49aa1b4.execute(ra_stream_pzwaiviewer_popup_25a7e6aa9ad97288ad3be889e49aa1b4.java:109); at com.pega.pegarules.session.internal.mgmt.Executable.getStream(Executable.java:4033); at com.pega.pegarules.session.internal.mgmt.Executable.getStream(Executable.java:3861); at com.pegarules.generated.activity.ra_action_displayharnesswithclass_4cc9f9e9cb9b892dd9c83273e3c08a6c.step4_circum0(ra_action_displayharnesswithclass_4cc9f9e9cb9b892dd9c83273e3c08a6c.java:495); at com.pegarules.generated.activity.ra_action_displayharnesswithclass_4cc9f9e9cb9b892dd9c83273e3c08a6c.perform(ra_action_displayharnesswithclass_4cc9f9e9cb9b892dd9c83273e3c08a6c.java:120); at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3500); at com.pegarules.generated.activity.ra_action_douiaction_3438e1b79be3fba9725d7cc6be896f92.step18_circum0(ra_action_douiaction_3438e1b79be3fba9725d7cc6be896f92.java:1882); at com.pegarules.generated.activity.ra_action_douiaction_3438e1b79be3fba9725d7cc6be896f92.perform(ra_action_douiaction_3438e1b79be3fba9725d7cc6be896f92.java:355); at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3500); at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:646); at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.runActivitiesAlt(PRThreadImpl.java:461); at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.runActivities(HttpAPI.java:3322); at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequestInner(EngineAPI.java:385); at sun.reflect.GeneratedMethodAccessor48.invoke(Unknown Source); at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43); at java.lang.reflect.Method.invoke(Method.java:483); at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock(PRSessionProviderImpl.java:1270); at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1008); at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:841); at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequest(EngineAPI.java:331); at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.invoke(HttpAPI.java:850); at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(EngineImpl.java:315); at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:263); at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:240); at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngineInner(JNDIEnvironment.java:278); at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngine(JNDIEnvironment.java:223); at com.pega.pegarules.web.impl.WebStandardImpl.makeEtierRequest(WebStandardImpl.java:574); at com.pega.pegarules.web.impl.WebStandardImpl.doPost(WebStandardImpl.java:374); at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source); at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43); at java.lang.reflect.Method.invoke(Method.java:483); at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:367); at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:408); at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(AppServerBridgeToPega.java:223); at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethod(AppServerBridgeToPega.java:272); at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doPost(WebStandardBoot.java:121); at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doGet(WebStandardBoot.java:92); at javax.servlet.http.HttpServlet.service(HttpServlet.java:734); at javax.servlet.http.HttpServlet.service(HttpServlet.java:847); at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295); at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214); at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231); at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149); at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:420); at org.jboss.as.web.session.ClusteredSessionValve.handleRequest(ClusteredSessionValve.java:134); at org.jboss.as.web.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:99); at org.jboss.as.web.session.JvmRouteValve.invoke(JvmRouteValve.java:92); at org.jboss.as.web.session.LockingValve.invoke(LockingValve.java:64); at org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:272); at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169); at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145); at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97); at org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466); at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102); at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344); at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856); at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653); at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926); at java.lang.Thread.run(Thread.java:745);