Request ID: 00-1267a534a67afe3ea6d1ca37052452ca-30b67f0ec9b758e2-00
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.