Free booster and free lives advertisements on a level retry screen always require a strong and stable Internet Connection. Normally, an advertisement may not be offered on every attempt, as you might not have a strong enough connection, or there may not be an advertisement ready to be served at all times. Videos for free lives can be watched only once a day.

In case you are unable to see any ads in the game, we recommend the following steps to see if they help:

- Force close the game, then launch the game again
- Try another connection, preferably Wi-Fi
- Restart your device