6/5/2026 2:10:05 PM - Message: Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property. StackTrace: at System.Web.Script.Serialization.JavaScriptSerializer.Serialize(Object obj, StringBuilder output, SerializationFormat serializationFormat) at System.Web.Script.Serialization.JavaScriptSerializer.Serialize(Object obj, SerializationFormat serializationFormat) at Surveya_Service.Surveya_Service.UploadEmailedSurveyResponse(String id, String syncID, String responseID, String dateCreated, String isCompleted, String responseQuestions, String version, String surveyName, String providedEmail) in C:\Projects\Surveya\surveya_service_and_webapp\Surveya Service\Surveya_Service.svc.cs:line 35701 6/5/2026 2:53:49 PM - Message: Failure sending mail. StackTrace: at System.Net.Mail.SmtpClient.Send(MailMessage message) at Surveya_Service.Helper.SendMail(String to, String subject, String message, Boolean isHTML, String from, Attachment mailAttachment) in C:\Projects\Surveya\surveya_service_and_webapp\Surveya Service\Helper.cs:line 64 6/5/2026 3:18:35 PM - Message: Inner Exception StackTrace: System.Data.Entity.Core.OptimisticConcurrencyException: Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries. at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.ValidateRowsAffected(Int64 rowsAffected, UpdateCommand source) at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update() at System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess) at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesToStore(SaveOptions options, IDbExecutionStrategy executionStrategy) at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation) at System.Data.Entity.Core.Objects.ObjectContext.SaveChanges(SaveOptions options) at System.Data.Entity.Internal.InternalContext.SaveChanges() 6/5/2026 3:18:35 PM - Message: Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries. StackTrace: at System.Data.Entity.Internal.InternalContext.SaveChanges() at Surveya_Service.Surveya_Service.UploadEmailedSurveyResponse(String id, String syncID, String responseID, String dateCreated, String isCompleted, String responseQuestions, String version, String surveyName, String providedEmail) in C:\Projects\Surveya\surveya_service_and_webapp\Surveya Service\Surveya_Service.svc.cs:line 35936