Can't log in... That's all I know...

[StefanoZero]

I followed every step of the guide and still cannot log in. I created the project, enabled the API keys, OAuth Client KEY, added my account as permitted user, and when tt asks to follow the link and insert the 9 character code it all seems to work, except that the app fails to log me in at the last step.
Console output:
/home/---/Github/youtube-viewer/bin $ ./youtube-viewer

=>> Search for YouTube videos (:h for help)

:login

:: OAuth 2.0 for TV and Limited-Input Device Applications.
:: Using the following scope: https://www.googleapis.com/auth/youtube

:: Press to begin the authentication process!

:: Open the following link:

https://www.google.com/device

and insert the following user code: XXX-XXX-XXX

I open the link and insert the code,

I choose my permitted email address, click "Continue"

and Google tells me my account is connected to the application

:: After granting access, press .

[WARNING] Can't log in... That's all I know...

=>> Search for YouTube videos (:h for help)