error removing attestation

Error removing attestation

2017-11-25 21:40:56,431: [http-bio-8088-exec-5] ERROR GrouperUiRestServlet.doGet(327) - - Problem calling reflection from URL: edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Attestation.editStemAttestationSave

java.lang.RuntimeException: Expecting something which can be converted to boolean, but is null or blank: 'null',
Problem calling method editStemAttestationSave on edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Attestation
at edu.internet2.middleware.grouper.util.GrouperUtil.booleanValue(GrouperUtil.java:5022)
at edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Attestation.editAttestationSaveHelper(UiV2Attestation.java:304)
at edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Attestation.access$3(UiV2Attestation.java:293)
at edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Attestation$10.callback(UiV2Attestation.java:1480)
at edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Attestation$10.callback(UiV2Attestation.java:1)
at edu.internet2.middleware.grouper.GrouperSession.callbackGrouperSession(GrouperSession.java:974)
at edu.internet2.middleware.grouper.GrouperSession.internal_callbackRootGrouperSession(GrouperSession.java:1022)
at edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Attestation.editStemAttestationSave(UiV2Attestation.java:1468)
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 edu.internet2.middleware.grouper.util.GrouperUtil.invokeMethod(GrouperUtil.java:4162)
at edu.internet2.middleware.grouper.util.GrouperUtil.callMethod(GrouperUtil.java:4113)
at edu.internet2.middleware.grouper.j2ee.GrouperUiRestServlet.doGet(GrouperUiRestServlet.java:294)
at edu.internet2.middleware.grouper.j2ee.GrouperUiRestServlet.doPost(GrouperUiRestServlet.java:165)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.owasp.csrfguard.CsrfGuardFilter.doFilter(CsrfGuardFilter.java:110)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at edu.internet2.middleware.grouper.ui.GrouperUiFilter.doFilter(GrouperUiFilter.java:1053)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:610)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)