Request ID: 00-d943b5c4985fd5ee4e53a3726afa4176-d018326ad50d2dd0-00
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.