Discovered Inventory Data Warehouse Synchronization Server

I am getting an error checking this, object reference not set to an instance of an object

Date: 1/23/2014 1:59:46 PM
Application: Operations Manager
Application Version: 7.1.10226.0
Severity: Error
Message: 

System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.EnterpriseManagement.Common.EnterpriseManagementObjectBaseWithProperties.Reconnect(EnterpriseManagementGroup managementGroup)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Cache.Query`1.GetUpdate(IndexTable indexTable, QueryUpdate`1 update, CacheCursor cursor, Range range, Int32 offset, Int32 groupLevel)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Cache.QueryCache`2.GetUpdate(IndexTable indexTable, QueryUpdate`1 update)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Cache.QueryCache`2.GetUpdate(CacheSession session, Boolean fullUpdate)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Cache.QueryCache`2.FireUpdateEvent(CacheSession session, DateTime updateTime, Boolean dataChanged, Boolean fullUpdate, Boolean updatesOnly, IEnumerable queryResult)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Cache.Query`1.FireUpdateEvents(CacheSession session, Boolean dataChanged, Boolean fullUpdate, ICollection`1 queryResult)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Cache.Query`1.PostQuery(CacheSession session, IndexTable indexTable, UpdateReason reason, UpdateType updateType, Boolean dataChanged, DateTime queryTime, ICollection`1 queryResult)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Cache.Query`1.InternalSyncQuery(CacheSession session, IndexTable indexTable, UpdateReason reason, UpdateType updateType)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Cache.Query`1.InternalQuery(CacheSession session, UpdateReason reason)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Cache.Query`1.TryDoQuery(UpdateReason reason, CacheSession session)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Console.ConsoleJobExceptionHandler.ExecuteJob(IComponent component, EventHandler`1 job, Object sender, ConsoleJobEventArgs args)