No groups in GoogleApps causes 'Value cannot be nul'

Monash has deleted all the Groups from Google, now when they run an Import All they are getting following error

20141009,22:56:48,UNIFY Identity Broker,Connector Processor,Information,"Connector processing success.
0 entites in cumulative total. Current processing of page 1 for connector gappsOUConnector processed 4 entities, finding 0 differences. Duration: 00:00:00.2675610. ",Normal
20141009,22:56:49,UNIFY Identity Broker,Change detection engine,Information,"Change detection engine import all items completed.
Change detection engine import all items for connector gappsOUConnector completed. Duration: 00:00:07.3081260",Normal
20141009,22:56:49,UNIFY Identity Broker,Change detection engine,Information,"Started processing changes register items.
Started processing changes register items for connector gappsUserConnector.",Normal
20141009,22:56:50,UNIFY Identity Broker,Change detection engine,Information,"Changes register item processing completed.
Changes register item processing on connector gappsUserConnector completed. Duration: 00:00:01.0477845",Normal
20141009,22:57:53,UNIFY Identity Broker,Change detection engine,Information,"Change detection engine import all items started.
Change detection engine import all items for connector gappsGroupConnector started.",Normal
20141009,22:57:53,UNIFY Identity Broker,Connector,Information,"Request to import all entities from connector.
Request to import all entities from connector gappsGroupConnector.",Normal
20141009,22:57:55,UNIFY Identity Broker,Connector,Warning,"Import all entities from connector failed.
Import all entities from connector gappsGroupConnector failed with reason Value cannot be null.
Parameter name: source. Duration: 00:00:01.6551675
Error details:
System.ArgumentNullException: Value cannot be null.
Parameter name: source
at System.Linq.Enumerable.AnyTSource(IEnumerable`1 source)
at Unify.Product.IdentityBroker.GoogleAgent.<GroupGetPages>d__16.MoveNext()
at System.Linq.Enumerable.<SelectManyIterator>d__14`2.MoveNext()
at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
at Unify.Framework.Collections.ActionOnExceptionEnumerator`1.MoveNext()
at Unify.Framework.Collections.EnumerableExtensions.<ActionOnLast>d__19`1.MoveNext()
at Unify.Framework.Collections.EnumerableExtensions.<ProduceAutoPages>d__a`1.MoveNext()
at Unify.Framework.Visitor.ThreadsafeVisitorEvaluator`1.Visit()
at Unify.Framework.Visitor.VisitEvaluateOnThreadPoolT(IEnumerable`1 visitCollection, Action`2 visitor, Int32 maxThreads)
at Unify.Framework.Visitor.VisitEvaluateOnThreadPoolT(IEnumerable`1 visitCollection, Action`1 visitor, Int32 maxThreads)
at Unify.Product.IdentityBroker.RepositoryChangeDetectionWorkerBase.PerformChangeDetection(IEnumerable`1 connectorEntities)
at Unify.Product.IdentityBroker.ChangeDetectionImportAllJob.ImportAllChangeProcess()
at Unify.Product.IdentityBroker.ChangeDetectionImportAllJob.RunBase()
at Unify.Framework.JobBase.Run()
at Unify.Framework.DefinedScopeJobAuditTrailJobDecorator.Run()
at Unify.Product.IdentityBroker.ConnectorJobExecutor.<>c_DisplayClass29.<Run>b_27()
at Unify.Framework.ActionJob.RunBase()
at Unify.Framework.JobBase.Run()
at Unify.Framework.AsynchronousJobExecutor.PerformJobCallback(Object state)",Normal
20141009,22:57:55,UNIFY Identity Broker,Change detection engine,Error,"Change detection engine import all items failed.