Error: Invalid UTF-8 sequence: invalid utf-8 sequence of 1 bytes from index 8 during setup

[qurram-zaheer]

Fresh install, just entered client ID and secret in the prompt. It opened something in the browser which showed a broken page because nothing is running on localhost:8888, but after that I just get the following error in the terminal:

Opened https://accounts.spotify.com/authorize?redirect_uri=http:%2F%2Flocalhost:8888%2Fcallback&client_id=04633ef868cd41848be1461974da36e6&response_type=code&scope=playlist-read-collaborative%20playlist-read-private%20playlist-modify-private%20playlist-modify-public%20user-follow-read%20user-follow-modify%20user-library-modify%20user-library-read%20user-modify-playback-state%20user-read-currently-playing%20user-read-playback-state%20user-read-playback-position%20user-read-private%20user-read-recently-played&state=ZjyWUvdGKAYciEV1& in your browser

Error: Invalid UTF-8 sequence: invalid utf-8 sequence of 1 bytes from index 8
Error: Invalid UTF-8 sequence: invalid utf-8 sequence of 1 bytes from index 8
Error: Invalid UTF-8 sequence: invalid utf-8 sequence of 1 bytes from index 4

[apprehensions]

https://github.com/aome510/spotify-player#spotify-connect