ex: Sequence contains no elements at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source) at System.Data.Objects.ELinq.ObjectQueryProvider.b__3[TResult](IEnumerable`1 sequence) at System.Data.Objects.ELinq.ObjectQueryProvider.ExecuteSingle[TResult](IEnumerable`1 query, Expression queryRoot) at System.Data.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[S](Expression expression) at System.Linq.Queryable.Single[TSource](IQueryable`1 source, Expression`1 predicate) at OneTwoThree.Userpage.LoadGI()