ERROR: Request failed (HTTPError: 403)

I did
`sc-syncer -u 398293050 -o Music/Soundcloud -c [REDACTED]` and got

```
ERROR: Request `https://api.soundcloud.com:443/users/398293050/favorites.json?offset=0&limit=50&client_id=[REDACTED]` failed (HTTPError:403).
```

Where [REDACTED] is my Client ID.