Request ID: 00-1c2836e96b97f6c6efe54dc250ba44b1-cfe4810c3fe60ce2-00
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.