Token download error

[giguphs]

Hello, This is Graduate school of Public Health lab in YONSEI University.

we have some problems to use fitbit homepage about API.

last week, we can download token and user ID but this week can't download it.

we read a menual about API. They said "many problem occur different imformation between homepage and dev.fitbit"

so, we changed information and rebooting but it still not work.

I attached the picture,  I would appreciate it if you could refer to it and tell me the solution. 

we want uesr ID and token. thank you for your help.

[JonFitbit]

Can you tell me which API you're using?

Also, your photo did not attach. Thanks