I'm a Amazon Affiliate API user but yesterday I suddenly got success but empty response!

{ items: [], message: "", searchURL: "https://www.amazon.com/s?k=chick&rh=p_n_availability%3A-1&tag=cocarting0b-20&linkCode=osi", status: "Success", totalResults: 306 }

You can see the items is empty but returned with Success status, and the HTTP code is 200, You can also see the totalResults is 306 which means the items should not be empty! so weird!