Error 002_021 appears when trying to create or join a party in Fall Guys

Uninstall and reinstall the game

Reinstalling your game may resolve the issue.

1. Open the Epic Games Launcher.
2. Click on the Library.
3. Locate your game and click on the three dots next to it.
4. Click on Uninstall.
5. Once the uninstall completes, click on the game to begin the installation process again.