Request ID: 00-cbd6cca2f4d57dde2a4f0e72177248f4-b3759c8d8117b0ed-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.