Mopidy Spotify Search 401 error

General
1

Hello all,

I am using Mopidy-spotify on raspbian stretch, everything was working fine until some days ago (I was on Raspbian Jessy before). On start, mopidy reports back saying that it successfully connected to spotify. I use mopidy.js to interact with mopidy, it connects ok to mopidy, but when I try to search for anything, I get the following error:

ERROR Fetching https://auth.mopidy.com/spotify/token failed: 401 Client Error: UNAUTHORIZED for url: https://auth.mopidy.com/spotify/token

The strange thing is that this used to work before, I did reinstall mopidy from scratch, but configured everything the same way than before.

Here is my mopidy configuration:

[core]
cache_dir = $XDG_CACHE_DIR/mopidy
config_dir = $XDG_CONFIG_DIR/mopidy
data_dir = $XDG_DATA_DIR/mopidy
max_tracklist_length = 10000
restore_state = false

[logging]
color = true
console_format = %(levelname)-8s %(message)s
debug_format = %(levelname)-8s %(asctime)s [%(process)d:%(threadName)s] %(name)s\n  %(message)s
debug_file = mopidy.log
config_file =

[audio]
mixer = software
mixer_volume =
output = autoaudiosink
buffer_time =

[proxy]
scheme =
hostname =
port =
username =
password =

[mpd]
enabled = true
hostname = 127.0.0.1
port = 6600
password =
max_connections = 20
connection_timeout = 60
zeroconf = Mopidy MPD server on $hostname
command_blacklist =
  listall
  listallinfo
default_playlist_scheme = m3u

[http]
enabled = true
hostname = 0.0.0.0
port = 6680
static_dir =
zeroconf = Mopidy HTTP server on $hostname

[stream]
enabled = true
protocols =
  http
  https
  mms
  rtmp
  rtmps
  rtsp
metadata_blacklist =
timeout = 5000

[m3u]
enabled = true
base_dir =
default_encoding = latin-1
default_extension = .m3u8
playlists_dir =

[softwaremixer]
enabled = true

[file]
enabled = true
media_dirs =
  $XDG_MUSIC_DIR|Music
  ~/|Home
excluded_file_extensions =
  .jpg
  .jpeg
show_dotfiles = false
follow_symlinks = false
metadata_timeout = 1000

[local]
enabled = false  ; Extension disabled due to config errors.
library = json
media_dir =  ; Must be set.
scan_timeout = 1000
scan_flush_threshold = 100
scan_follow_symlinks = false
excluded_file_extensions =
  .directory
  .html
  .jpeg
  .jpg
  .log
  .nfo
  .png
  .txt

[spotify]
enabled = true
username = mdundek@gmail.com
password = ********
client_id = b5f9257c1e2c4b928c7f58f33dbc3d8c
client_secret = ********
bitrate = 160
volume_normalization = true
private_session = false
timeout = 10
allow_cache = true
allow_network = true
allow_playlists = true
search_album_count = 20
search_artist_count = 10
search_track_count = 50
toplist_countries =

Any suggestions would be very welcome.

Thanks