A We sincerely apologize for the inconvenience this matter may have caused.
We would be most grateful if you could kindly review the following points and contact us accordingly.

・After viewing the advertisement, does the “×” button become unresponsive?
If so, we would greatly appreciate it if you could let us know whether this issue occurs with a specific advertisement only or with all advertisements.

・We kindly ask you to restart your device and check whether the issue is resolved when you relaunch the application.

・If possible, please provide us with a screenshot or screen recording as soon as the problem occurs. This will help us determine the cause.