The German train company has a big problem. This problem is in all of Germany. The technique and the radio do not work. The trains cannot drive safely. So the company stops many trains.
Trains wait at stations or safe places. There are many delays. Many trains do not come at all. This hits trains for long ways and local trains. Often city trains cannot drive too.
In Bavaria the problem is very bad. Almost no train drives there. Other train firms have problems too. Firms in Lower Saxony say: Do not take the train today. The reason for the error is not clear.