As stated on other messages, I realize that this is not a supported App.  However, we are using Beta Chatter and I have followed the steps to install this app - GoogleAlertstoChatter.  It was easy to configure and in theory is very well received by our Sales and Management.  Not sure yet if it is working, since it is not clear where the notifications will be listed - I assume in the Chatter Notifications.   One problem issue is that whenever I do a merge of Accounts or Contacts, whether using Salesforce directly or Demand Tools, I am getting the following error email.  I need to know if this has to do with our Email Server, GoogleAlertstoChatter email, or something else with the APEX class. 

Apex script unhandled exception by user/organization: 00500000006uBVl/00D00000000heIs

Failed to invoke future method 'public static void executeGoogleAlertsCallouts(LIST:String, LIST:String, LIST:String)'

caused by: System.NullPointerException: Attempt to de-reference a null object

Class.GoogleAlertToChatter.executeGoogleAlertsCallouts: line 239, column 63 External entry point

Debug Log:

Any help or suggestions would be greatly appreciated.