Request ID: 00-f477f023d16ef8ed0ef45470db056988-9322c7ea19031dd0-00
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.