FileNotFoundError: [Errno 2] No such file or directory

[firebfm]

This track has a question mark but filenames cannot have illegal characters. How to fix it? Upon closer inspection, there is also an illegal space at the end.

Traceback (most recent call last):
  File "redsea.py", line 225, in <module>
    main()
  File "redsea.py", line 169, in main
    md.download_media(track, preset['quality'], media_info)
  File "C:\Users\Simon\Desktop\RedSea-master\redsea\mediadownloader.py", line 173, in download_media
    temp_file = self._dl_url(stream_data['url'], track_path)
  File "C:\Users\Simon\Desktop\RedSea-master\redsea\mediadownloader.py", line 38, in _dl_url
    with open(where, 'wb') as f:
FileNotFoundError: [Errno 2] No such file or directory: './Super Girls - 有沒有我 \\01. 有沒有我 .flac'