Request ID: 00-559b12c0dd794dab0bd2936b69908b46-9b5b3dc9cc971236-00
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.