Event ID - 1220

Event Id1220
SourceMSExchangeIS Private
DescriptionInternal server error: database session was not released by previous request.
Event InformationAccording to Microsoft:
This problem may occur when a Remote Procedure Call (RPC) exception occurs, but the RPC session is not unlocked.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem.Apply it only to systems that are experiencing this specific problem.You must restart your computer after you apply this hotfix.
Reference LinksThe Store.exe process on an Exchange 5.5 Server computer may stop responding, and event 1220 and event 1114 are logged

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