This is one and only option to cancel the event. You have to be the owner. Cancelled offers are blocked, not removed. You can always check disabled offer using getEventOffer method
You can try that method by clicking here
This API is no longer supported for offers with localized versions. If you would like to create or modify an offer with localizations, you can do so directly in the Cleeng dashboard.
You can find your publisher token at api-keys page.
Put here an offer id you want to cancel. You have to be the offer owner.
Unique identifier of your video asset.