I'm so confused about what to do.
I was hoping to take the 12:28-16:58 train from Prague to Berlin on 6/7 on one of our Eurail 2nd class days. It looked like no seat reservation was required and we were all set. I bookmarked the trip on the DB website. But then DB told me that journey wasn't possible. It seems like now there are no trains going from Prague to Berlin that day? Why would that happen? What should I do?