Android Question AdManager Library ErrorCode: 3

Hello, i'm using this library https://www.b4x.com/android/forum/threads/admanager-library.122111/#content, i tested the example and did worked with the test ads, but when i change to my ads i'm getting AdFailedToLoadInter: ErrorCode: 3, ErrorMessage: No ad config.

Is this happening to someone else, is this library updated to work?

Thanks all.