I think the main reason was again inadequacy (but now my interpretation) and also that I tried too hard. So the biggest gap in my interpretation was that I explained to the children in too much detail about the Soviet Union. I wanted them to know "only" the important, but suddenly everything came to me during the conversation. I think I just confused the students with this approach.
So the biggest gap in my interpretation was that I explained to the children in too much detail about the Soviet Union.