Request ID: 00-bcfec8973f4c7eff8386917b57a723a8-5dcdc7a81ede9af8-00
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.