Error code: 200

Inner Exception: System.InvalidOperationException: Invalid attempt to call Read when reader is closed. at System.Data.SqlClient.SqlDataReader.TryReadInternal(Boolean setTimeout, Boolean& more) at System.Data.SqlClient.SqlDataReader.Read() at System.Data.Entity.Core.Common.Internal.Materialization.Shaper`1.StoreRead()

Message:
Calling 'Read' when the data reader is closed is not a valid operation.