We're continually working on improving stability when watching ads.
Most mobile games have a report option for ads. This option is usually represented by an "i" in the corner or a flag or speech bubble icon. Click on the icon and follow the prompts to report the ad.
If there's no reporting feature in the ad, please contact our game support through in-game settings.
Please provide a screenshot of the ad. It's best if the screenshot also shows the name of the application being promoted.
We have multiple advertising partners, so it’s important for us to know exactly which ad is causing trouble and which provider it originates from.