Request ID: 00-9482ccc8c2b9a0b7678334152675f2a4-bd3df558cc40005b-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.