Gnome Music Playlist Error

$ G_MESSAGES_DEBUG=org.gnome.Music gnome-music
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.133: (trackerwrapper.py, _setup_host_miner_fs, 73) Connecting to session-wide Tracker indexer at org.freedesktop.Tracker3.Miner.Files
org.gnome.Music-INFO: 18:06:43.134: Using session-wide tracker-miner-fs-3
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.172: (coregrilo.py, __init__, 107) Failed to activate grl-daap plugin.
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.172: (coregrilo.py, __init__, 107) Failed to activate grl-youtube plugin.
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.172: (coregrilo.py, __init__, 107) Failed to activate grl-tmdb plugin.
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.467: (coregrilo.py, __init__, 107) Failed to activate grl-thetvdb plugin.
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.814: (coregrilo.py, _on_source_removed, 169) Removed source grl-bookmarks
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.815: (coregrilo.py, __init__, 107) Failed to activate grl-vimeo plugin.
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.980: (coregrilo.py, _on_source_removed, 169) Removed source grl-metadata-store
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.986: (coregrilo.py, __init__, 107) Failed to activate grl-dpap plugin.
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.986: (coregrilo.py, __init__, 107) Failed to activate grl-shoutcast plugin.
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.998: (coregrilo.py, _on_source_removed, 169) Removed source grl-appletrailers-lua
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:43.999: (coregrilo.py, _on_source_removed, 169) Removed source grl-euronews-lua
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:44.000: (coregrilo.py, _on_source_removed, 169) Removed source grl-guardianvideos-lua
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:44.001: (coregrilo.py, _on_source_removed, 169) Removed source grl-itunes-podcast
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:44.003: (coregrilo.py, _on_source_removed, 169) Removed source grl-radiofrance-lua
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:44.005: (coregrilo.py, _on_source_removed, 169) Removed source grl-thegamesdb
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:44.013: (coregrilo.py, _on_source_removed, 169) Removed source grl-filesystem
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:44.231: (coregrilo.py, _on_source_removed, 169) Removed source grl-podcasts
(org.gnome.Music:113786): org.gnome.Music-DEBUG: 18:06:44.321: (coregrilo.py, _on_source_added, 156) Adding wrapper <grltrackerwrapper.GrlTrackerWrapper object at 0x7f90dc65b4c0 (gnomemusic+grilowrappers+grltrackerwrapper+GrlTrackerWrapper at 0x555a9b508700)>
Traceback (most recent call last):
  File "/usr/lib/python3.8/site-packages/gnomemusic/utils.py", line 204, in wrap
    return func(a, b, *user_data)
  File "/usr/lib/python3.8/site-packages/gnomemusic/coremodel.py", line 189, in _playlists_sort
    date_diff = playlist_b.props.creation_date.difference(
AttributeError: 'NoneType' object has no attribute 'difference'