It's possible that:
* The name is misspelled. Double-check the spelling and try searching again.
* The person is not a public figure. They might be working in the industry but not in a starring or publicly recognized role.
* There's a lack of online presence. Some actors may not have a strong online presence or have chosen to keep their work private.
If you have more information about Ayton Sert, such as their full name, the type of role they played, or any other details, it might help in finding relevant information.