Request ID: 00-a8bd9b2ab19c135b10acb22326390d42-e38daf04cbc41ae0-00
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.