Request ID: 00-f0d6a85a6c87bded337428e5ea011fd4-d8d641c5a69e5c12-00
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.