The unsubscription is not successful.

Error message is :
:11:-2147352567:31:Method '~' of object '~' failed:0::0::11:-2147352567:31:Method '~' of object '~' failed:196:START: VBErrorInfo Description: Method '~' of object '~' failed HelpContext: 1000440 HelpFile: LastDllError: 203 Number: -2147352567 (0x80020009) Source: Agent_BUS END: VBErrorInfo :312:START: AppInfo ComputerName: PAZ02HTP3643 Operating System: Windows 2003 5.2.3790 (Service Pack 2) Time: Mon 2015:10:05 01:38:37 Title: Agent_BUS EXEName: Agent_BUS Path: D:\Components\TPO Components Version: 14.90.2 Unattended: True Retained: True StartMode: 1 Thread: 1376 END: AppInfo :337:START: ContextInfo IsInTransaction: True ContextInfo.ActivityId: {8D6CACE8-6E5F-40AC-8162-6B1C2452F7EA} ContextInfo.ContextId: {7421513D-8B16-4942-A056-BD8C9782B033} ContextInfo.IsInTransaction: True ContextInfo.TransactionId: {5CFD3D36-4C33-40B5-A3BA-42FCE1D12E13} IsSecurityEnabled: False ItemCount: 5 END: ContextInfo :38:START: ADODBErrors END: ADODBErrors :1:0:176:VB Error Source: Agent_BUS ** Computer: PAZ02HTP3643 App Path: D:\Components\TPO Components\Agent_BUS Filename: Contact_RW Function: UpdateContactEmailSubscriptionStatus: