Its a game in the same genre, with the same art style, same name Stumble and Fall have similiar meanings with the second name the same. Every aspect of the game is exactly the same.

Troubleshooting

1
Close the game.
2
Restart your Wifi router.
3
Go to settings > About your phone > System updates.
4
Clear the cache on your device by going to settings > Apps > Clear Cache.
5
Make sure that your internet connection is stable by using Wi-Fi.
6
Relaunch the game.