TypeError: 'NoneType' object does not support item assignment

[KDJDEV]

Whenever I try to synchronize I get this error. I have tried on both Windows and Linux. I am using default settings.

[SYNCED]       |   Course: 23-24Y_SA-HIST-AMER-US.1
Traceback (most recent call last):
  File "/home/kdj/.local/bin/canvas", line 8, in <module>
    sys.exit(entry())
  File "/home/kdj/.local/lib/python3.8/site-packages/bin/canvas.py", line 187, in entry
    run_canvas_sync()
  File "/home/kdj/.local/lib/python3.8/site-packages/bin/canvas.py", line 132, in run_canvas_sync
    main_menu(settings)
  File "/home/kdj/.local/lib/python3.8/site-packages/bin/canvas.py", line 147, in main_menu
    main_menu(settings)
  File "/home/kdj/.local/lib/python3.8/site-packages/bin/canvas.py", line 154, in main_menu
    do_sync(settings, "")
  File "/home/kdj/.local/lib/python3.8/site-packages/bin/canvas.py", line 170, in do_sync
    synchronizer.sync()
  File "/home/kdj/.local/lib/python3.8/site-packages/CanvasSync/entities/synchronizer.py", line 126, in sync
    course.sync()
  File "/home/kdj/.local/lib/python3.8/site-packages/CanvasSync/entities/course.py", line 160, in sync
    self.add_files_folder()
  File "/home/kdj/.local/lib/python3.8/site-packages/CanvasSync/entities/course.py", line 116, in add_files_folder
    main_folder[u"name"] = u"Other Files"
TypeError: 'NoneType' object does not support item assignment