Recently we have deleted Access Group and removed this Access group from all Operators Form. But getting below log issue.Deleted AG not referred in Advanced Agent,Data Page and Service Package..
Can any one please help me.

2017-02-16 09:59:00,095 [egaRULES UsageDaemon] [  STANDARD] [                    ] [                    ] (nitor.internal.UsageDaemonImpl) WARN    - Exception while gathering usage data, ignoring requestor H619DE334BF661A62A9BBFE8C6E365CDE
com.pega.pegarules.pub.PRRuntimeException: Unable to restore passivated requestor; error in authorization activation
	at com.pega.pegarules.session.internal.authorization.SessionAuthorization.activate(SessionAuthorization.java:357)
	at com.pega.pegarules.session.internal.authorization.Authorization.activate(Authorization.java:516)
	at com.pega.pegarules.session.internal.mgmt.base.ThreadPassivation.activateThread(ThreadPassivation.java:876)
	at com.pega.pegarules.session.internal.mgmt.base.ThreadPassivation.configureThreadImpl(ThreadPassivation.java:300)
	at com.pega.pegarules.session.internal.mgmt.PRThreadBase.configureThread(PRThreadBase.java:177)
	at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.<init>(PRThreadImpl.java:134)
	at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.acquire(PRThreadImpl.java:158)
	at com.pega.pegarules.session.internal.mgmt.base.RequestorThreadSync.getOrCreateThread(RequestorThreadSync.java:175)
	at com.pega.pegarules.session.internal.mgmt.base.RequestorThreadSync.getOrCreateThread(RequestorThreadSync.java:162)
	at com.pega.pegarules.session.internal.mgmt.base.RequestorThreadSync.getOrCreateThread(RequestorThreadSync.java:158)
	at com.pega.pegarules.session.internal.mgmt.base.RequestorThreadSync.getOrCreateThread(RequestorThreadSync.java:154)
	at com.pega.pegarules.session.internal.mgmt.PRRequestorImpl.getOrCreateThread(PRRequestorImpl.java:725)
	at com.pega.pegarules.monitor.internal.UsageDaemonImpl$1.run(UsageDaemonImpl.java:1116)
	at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock(PRSessionProviderImpl.java:1259)
	at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1008)
	at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:2140)
	at com.pega.pegarules.monitor.internal.UsageDaemonImpl.snapshotAllRequestors(UsageDaemonImpl.java:1105)
	at com.pega.pegarules.monitor.internal.UsageDaemonImpl.processUsageData(UsageDaemonImpl.java:811)
	at sun.reflect.GeneratedMethodAccessor225.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	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.monitor.internal.UsageDaemonImpl.processData(UsageDaemonImpl.java:738)
	at com.pega.pegarules.monitor.internal.UsageDaemonImpl.run(UsageDaemonImpl.java:666)
	at java.lang.Thread.run(Thread.java:745)
Caused by: com.pega.pegarules.pub.context.InvalidConfigurationException: No such Access Group: < Access Group Name > for thread STANDARD
From: (unknown) 
	at com.pega.pegarules.session.internal.authorization.context.GlobalContextCache.getBasicApplicationContext(GlobalContextCache.java:418)
	at com.pega.pegarules.session.internal.authorization.context.GlobalContextCache.getLocalizedApplicationContext(GlobalContextCache.java:429)
	at com.pega.pegarules.session.internal.authorization.context.AuthorizationContextManagerImpl.getContext(AuthorizationContextManagerImpl.java:79)
	at com.pega.pegarules.session.internal.authorization.SessionAuthorization.getContext(SessionAuthorization.java:554)
	at com.pega.pegarules.session.internal.authorization.SessionAuthorization.getContext(SessionAuthorization.java:527)
	at com.pega.pegarules.session.internal.authorization.SessionAuthorization.activate(SessionAuthorization.java:348)
	... 26 more