Request ID: 00-17cc87f448fd9214855b7c0ba2bb7dab-226dd9014cd6ee9e-00
A second operation was started on this context instance before a previous operation completed. This is usually caused by different threads concurrently using the same instance of DbContext. For more information on how to avoid threading issues with DbContext, see https://go.microsoft.com/fwlink/?linkid=2097913.