Request ID: 00-4feaad8983798e2c7cac3e6293b33a5e-7ff3429494d8a5d7-00
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.