Request ID: 00-9f7d938c3a04bc4d5deee849e77b5ce4-bcc70194c297acdb-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.