Request ID: 00-fb4042d002f30959e81e1aaf3a7001fc-b54f84f95205a24c-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.