ex: Sequence contains no elements at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)
at System.Data.Objects.ELinq.ObjectQueryProvider.<>c__11`1.b__11_3(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() in S:\OttCode\Webs\OttFrontend\Userpage.aspx.cs:line 3762