I want to made a reservations on December 2, 2024 from 11:13 PM BASEL SBB (Switzerland) to 05:58AM KOELN HBF (Germany), even this train is shown no seat reservation required
But when I follow step to proceed payment. its got a error message as below
Part of your journey couldn't be booked
Try booking a different connection or check alternative ways to book your reservation.
And then I found that the ticket type suddeney change from e-ticket to paper ticket
Later, I refresh the browser, the train detail suddeny changed to Seat reservations required
So, do I need to made any reservation about this train?