Request ID: 00-7d04819f15f5f9f474a32ef8cc392393-d6e7e9ff43f3bfca-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.