Request ID: 00-1b147f8f171fe228b9ae97d4e03e2fbb-97f04aa897b3b8f8-00
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.