This event is related to the Eventing Handler functionality for the Registration component in Session Manager. Due to this event, subscription based functionality stops working for the affected users. For example, affected users fail to receive the Message Waiting Indicator (MWI) event for the Voicemails. A warning event is logged after three such failures occur in one minute. The event is automatically cleared when such events stop.
This event can occur if the Data Manager component experiences a failure for one or more users. The failure could be due to an database inconsistency or error condition.
If the problem persists or recurs, call Avaya Technical Support.