InternalServerError for Roblox API "/v1/games/list"

Hi, I am just trying to use this API for my game:
https://games.roblox.com/docs#!/Games/get_v1_games_list
but It returns me a InternalServerError such as:

{"errors":[{"code":0,"message":"InternalServerError"}]}

when it directly connects to
https://games.roblox.com/v1/games/list, or in-game through Proxy using heroku.

What’s going on with those, and how to fix?

I didn’t set settings, so this error occurred. Now it’s fixed now.