APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at OpenSim.Region.ClientStack.LindenUDP.LLClientView.SendBulkUpdateInventory (OpenSim.Framework.InventoryNodeBase node) [0x00038] in /home/osgrid/PLAZA/zaius_plaza/OpenSim/
  at OpenSim.Region.CoreModules.Avatar.Inventory.Transfer.InventoryTransferModule+<OnInstantMessage>c__AnonStorey14.<>m__19 (Boolean success) [0x00054] in /home/osgrid/PLAZA/
r/InventoryTransferModule.cs:291
  at OpenSim.Region.CoreModules.Avatar.InstantMessage.MessageTransferModule.SendGridInstantMessageViaXMLRPCAsync (OpenSim.Framework.GridInstantMessage im, OpenSim.Region.Fram
ionID) [0x001d6] in /home/osgrid/PLAZA/zaius_plaza/OpenSim/Region/CoreModules/Avatar/InstantMessage/MessageTransferModule.cs:560

Application is terminating: True