Request ID: 00-f41e0b9474cee3f728b1a483162d6a21-b0e63fc2721831c6-00
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.