Here are some of the troubleshooting steps that you can follow to fix error 2002-3580 in Animal Crossing.

1. Install Updates.

   It is necessary to install every update provided by developers to fix any bugs or glitches that were identified. Make sure to check if the game and your console;s software is up to date. By default, Animal Crossing should update itself automatically so all you have to do is to confirm the installation prompt.You can also manually check for Nintendo Switch updates.To check if the software is updated:-Go to the Home Screen of your console.-Select System Settings. -Scroll down and select System.-Select System Update. An update will begin automatically if there is any or the message that shows the system is up to date will reflect on the screen.

2. Reboot Nintendo Switch.

   Restarting the Nintendo Switch can sometimes fix common problems. To do this, just press and hold (for at least 5 seconds) the Power button found on the top left of the Nintendo Switch. Select the Power Options and choose Restart next.

3. Reinsert the game card.

   If the error 2002-3580 still persists in Animal Crossing even after doing the steps above, you can also try to reinsert the game card if you have the physical game. Turn off the console first before taking out and inserting the game card.

4. Initialize the console without deleting save data.

   It may require you to initialize the console without deleting save data if the error is still unresolved. Here’s how it’s done:-Press and hold the Power Button for at least 5 seconds to open the Power Menu.-Select Power Options.-Select Power Off.-Press and hold down the volume up and volume down buttons located at the top left of the console. While both buttons are being held, press the Power Button to turn the console on. Keep holding the buttons until the Maintenance Mode appears.-Select Restore Factory Settings Without Deleting Save Data.-Read the information and select Next to start the process.