Animal Crossing not playable on new Nintendo?

Ch
- in Nintendo
2

Well, I bought a new Nintendo 3DS XL and always played Animal Crossing New Leaf on it. When I played on a friend's Nintendo (with my game card!), All the data was there as well. I have already swapped the SD cards, but then I can't play anymore. Only now I have a problem:

I have normally the game card in the slot out and the game starts, but is there now instead of "next" "New Game" or "Feeding"?

1. The data on my game card on it, why can't I play on a different device with my city?

2. When I go to "move", he only tells me that it is not possible. How do I move there?

3. If I start a new game on my new Nintendo, and then want to play on my old one again, will the data from my old city still be preserved or completely gone?

Even if it sounds silly, I would like to inform myself before I press it somewhere and then everything is gone. I mean, I was running the city for about 5-6 years and I would be annoyed if all those years were just erased 😅 Did anyone have the same problem or could you help me?

Mo

The data is on the system.

Ch

But all my other games I can play on the new device and all the data is there, that's why I was so confused why only ACNL does not work