Welllll this looks…a bit too DIY. Following this suggestion from casanovg, you need to edit your seafile-server-10.0.1/seahub/seahub/seahub/avatar/settings.py to
On line 25, change …
AVATAR_RESIZE_METHOD = getattr(settings, 'AVATAR_RESIZE_METHOD', Image.ANTIALIAS)
to
AVATAR_RESIZE_METHOD = getattr(settings, 'AVATAR_RESIZE_METHOD', None)
In my case, I changed it to:
AVATAR_RESIZE_METHOD = getattr(settings, 'AVATAR_RESIZE_METHOD', Image.Resampling.LANCZOS) and it also booted. I hope I don’t need to do this every time I update the server!