Request ID: 00-5ba7f278e034723826c4dea8b0b7d03c-439bfca8eb726667-00
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.