invalid client id

[floswald]

i can't setup a new app:

floswald@m0:~$ dropbox-api ls
Please Input API Key: ******
Please Input API Secret: ******
1. Open the Login URL: https://www.dropbox.com/oauth2/authorize?client_id=********&response_type=code
2. Input code and press Enter: **********************************
2018-04-18T10:33:33 [WebService::Dropbox] [ERROR] https://api.dropboxapi.com/oauth2/token {"client_id":"*****************","grant_type":"authorization_code","client_secret":"********","code":"**********************"} -> [400] {"error": "invalid_client: Invalid client_id or client_secret"} at /usr/local/share/perl/5.22.1/WebService/Dropbox.pm line 184, <STDIN> line 3.
{"error": "invalid_client: Invalid client_id or client_secret"} at /usr/local/bin/dropbox-api line 402, <STDIN> line 3.

any ideas?