API data can't be selected

Hi everyone.
I need you to help about API connection.
I’m just trying to get some JSON data via API connector.


The figure show that Chat GPT could back to me JSON data correctly.
(and I found that JSON format is valid using other JSON validation check services.)

still JSON valid is correct, JSON data doesn’t appear when it comes to save database.

I’m trying to get data especially name, and score in a JSON format ( choice > message > content > name, score) .
after selecting choice’s, there are no words I expected.

Do you have any good idea to solve this problem?