I received the following message from Deutsche Bahn regarding a ticket I purchased for 10 Dec. Leipzig to Nurnberg:

"Due to a timetable change, your journey from Leipzig Hbf to Nürnberg Hbf on 10 December 2023 cannot be carried out as described. Click "Get current information here" for alternative journey options to your destination.You can now use your ticket for other trains of Deutsche Bahn.

You can choose a new train connection, e.g. on bahn.de or in the DB Navigator, for the same day and via the same route."

Basically, they train I bought the ticket for was cancelled.

First, clicking "get current information here" doesn't offer any assistance. But I have found alternate trains. Do I have to somehow change the ticket or can I take any DB train(s) that day, regardless of the fare, from Leipzig to Nurnberg using my original ticket? Most of the trains show high demand expected and they recommend booking seats. I can't seem to find any way on bahn.de to choose a different train(s) let alone a way to book seats.

I hope someone more experienced with DB can help me. TIA