Коннектор MBtrading

Unhandled Exception 06.11.2014 18:10:03 Error System.AggregateException: A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception property. As a result, the unobserved exception was rethrown by the finalizer thread. ---> System.ArgumentNullException: Value cannot be null.
Parameter name: security
   at StockSharp.Hydra.Core.Extensions.IsAllSecurity(Security security)
   at StockSharp.Hydra.Panes.TaskPane.<TaskPane_OnLoaded>b__9(HydraTaskSecurity s)
   at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
   at StockSharp.Hydra.Panes.TaskPane.<TaskPane_OnLoaded>b__8(Boolean rest)
   at System.Threading.Tasks.Task.Execute()
   --- End of inner exception stack trace ---
---> (Inner Exception #0) System.ArgumentNullException: Value cannot be null.
Parameter name: security
   at StockSharp.Hydra.Core.Extensions.IsAllSecurity(Security security)
   at StockSharp.Hydra.Panes.TaskPane.<TaskPane_OnLoaded>b__9(HydraTaskSecurity s)
   at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
   at StockSharp.Hydra.Panes.TaskPane.<TaskPane_OnLoaded>b__8(Boolean rest)
   at System.Threading.Tasks.Task.Execute()<---