Ad not available
When you are trying to watch an ad to receive rewards but you keep seeing "ad not available" message, this issue is caused by your internet download speed.
When your internet speed is too slow, you are not able to download data from the servers and this causes your game to malfunction.
You can confirm this issue by doing a speed test for the internet connection you are using.
Getting no action from ad buttons
When you are trying to watch an ad to receive rewards but you keep getting no action when you tap the button, this issue is caused by the stability of your internet connection.
When you lose your connection, you will not get any response or action at the time you are tapping on a ad button (e.g. Rent, Watch buttons etc.).
**If you don't know how to check or fix the internet issues, check this article.