Request ID: 00-d944c8918f4356cadb0cb93c5b645ffb-3188f4289996ee38-00
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.