Request ID: 00-df50b5d624f1e0f074d27507429a6692-212037223ff95cd2-00
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.