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SLAM error - object reference not set to an instance of an object



I am getting the following SLAM error in my event logs on my SharePoint server:

Log Name: Application
Source: SLAM
Date: 5/9/2014 3:50:22 AM
Event ID: 0
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: (*********)
System.NullReferenceException: Object reference not set to an instance of an object.
at AWS.SLAM.ListItemEventManager.<>c__DisplayClassc.<ItemUpdated>b__8()
at Microsoft.SharePoint.SPSecurity.<>c__DisplayClass4.<RunWithElevatedPrivileges>b__2()
at Microsoft.SharePoint.Utilities.SecurityContext.RunAsProcess(CodeToRunElevated secureCode)
at Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(WaitCallback secureCode, Object param)
at Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(CodeToRunElevated secureCode)
at AWS.SLAM.ListItemEventManager.ItemUpdated(SPItemEventProperties properties)

I have checked the SLAM messagelog on the DB server for the same time frame, but I don't see any messages there from that date/time.

I also did not see any similar posts here regarding this error and AWS.SLAM.ListItemEventManager.

Any idea where I can check to find out what is going on?

Many thanks in advance...