System.NullReferenceException: Object reference not set to an instance of an object.
at lambda_method(ExecutionScope , IMyBaseClass )
at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
at lambda_method(ExecutionScope )
at System.Linq.EnumerableExecutor`1.Execute()
at System.Linq.EnumerableQuery`1.System.Linq.IQueryProvider.Execute[S](Expression expression)
at System.Linq.Queryable.Any[TSource](IQueryable`1 source, Expression`1 predicate)
at Netmester.Halsnaes.WebControls.SitecoreMenuList2.SitecoreMenuList2_InstantiateItem(Item item, Int32 level, Boolean& doInstantiate, Boolean& doNest)
at Netmester.SitecoreAPI.WebControls.SitecoreItemsList.Instantiate(Item[] list, Int32 level, Boolean nesting, Boolean updateListCount)