Searching Participant from Site > Utilities > Participant Administration results in a blank page in Windchill PDMLink

2025-04-15 19:35:04,035 ERROR [ajp-nio-127.0.0.1-8010-exec-8] wt.servlet.ServletRequestMonitor.request <UserName> - 2025-04-15 19:35:03.977 +0000, 4eii2op5;m9iwcx80;10452;pnianc;3263, <UserName>, 10.200.56.94, /Windchill/ptc1/principalpicker/principalPickerCD_step, unique_page_number=58214625906912_1&AjaxEnabled=row&wizardActionClass=com.ptc.windchill.principal.administration.ParticipantCommands&wizardActionMethod=addPrincipalsToParticipantAdmin&tableID=table__participantAdministration.listParticipants_TABLE&actionName=addParticipantToPAList&portlet=poppedup&context=administration%24participantAdministration%24OR%3Awt.inf.container.ExchangeContainer%3A216265401%24&oid=OR%3Awt.inf.container.ExchangeContainer%3A216265401&stepId=principalpicker.principalPickerCD_step&dynamicStepLoad=true, POST, -1, 0.0625, 0.0560711 wt.util.WTException: java.lang.NullPointerException: Cannot invoke "wt.org.DirectoryService.getName()" because "<local6>" is null
Nested exception is: java.lang.NullPointerException: Cannot invoke "wt.org.DirectoryService.getName()" because "<local6>" is null
	at wt.org.GenericDirectoryContextProvider.<init>(GenericDirectoryContextProvider.java:253)
	at wt.org.GenericDirectoryContextProvider.<init>(GenericDirectoryContextProvider.java:208)
	at wt.org.StandardOrganizationServicesManager.newDirectoryContextProvider(StandardOrganizationServicesManager.java:9645)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at wt.services.ServiceFactory$ServerInvocationHandler.invoke(ServiceFactory.java:399)