I'm sure this is user error on some level, but I cannot seem to book this train trip using either the RailEurope or the Deutsche Bahn sites. Friday, Nov 30, 2018, from Stuttgart to Colmar. 4 people. One way. 2nd class. Prefer to arrive in Colmar not too much earlier than 5PM because that is the check-in time for our Airbnb.
DB site sends me directly to RailEurope, where I get this error message: *It is possible the journey that you are searching for is made up of more than 2 connections, or includes other modes of transportation. We advise that you use our Interactive Rail Map to break up your itinerary. If you continue to receive an error, it is possible that the trains may be sold out.
Not certain what to do next. Your help is much appreciated!