Request ID: 00-c6c3d84254fa04d0050d4dc18df79dde-796346a7db7704b4-00
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.