Request ID: 00-fafb08b97d44bbb3d5af18ee0e995dc8-15c6a01e959e963e-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.