Request ID: 00-dfa33c6de5ec40a25a7ebc03f238b567-b8fd976da4cfed91-00
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.