Request ID: 00-66e0e28e63d801f9ec4443bb95e7f389-295f7253ce3c5f31-00
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.