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An unhandled exception occurred while processing the request.

SqlException: The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Posts_Users_UserId". The conflict occurred in database "NoraMozheDb", table "dbo.Users", column 'Id'.
The statement has been terminated.

Microsoft.Data.SqlClient.SqlConnection.OnError(SqlException exception, bool breakConnection, Action<Action> wrapCloseInAction)

DbUpdateException: An error occurred while updating the entries. See the inner exception for details.

Microsoft.EntityFrameworkCore.Update.ReaderModificationCommandBatch.Execute(IRelationalConnection connection)