If you can’t watch ads, unfortunately, we can do nothing as game developers. This is controlled by our 3rd party ad provider.

Most common problem:

• Make sure you have internet.

• Try switching from WiFi to mobile data.

If that doesn't help:

• Whenever you attempt to watch an ad, there is a real-time auction in the background.

• Advertisers make bids on the placement you see.

• If you watch too many ads, but never interact with those ads, advertisers might decide it's not "worth" it for them to pay more money to show you ads.

• You can try to reset your ad id (Google how to do it for your device).

• You can force quit the game and restart it.

• If that does not help: you will have to wait and try at a later point.