ValueError: a must be greater than 0 unless no samples are taken

[VaskMykola]

I have got this error:

  File "E:\projects\noteshrink\noteshrink.py", line 590, in <module>
    main()
  File "E:\projects\noteshrink\noteshrink.py", line 586, in main
    notescan_main(options=get_argument_parser().parse_args())
  File "E:\projects\noteshrink\noteshrink.py", line 561, in notescan_main
    palette = get_palette(samples, options)
  File "E:\projects\noteshrink\noteshrink.py", line 387, in get_palette
    centers, _ = kmeans(samples[fg_mask].astype(np.float32),
  File "C:\Users\bebag\AppData\Local\Programs\Python\Python39\lib\site-packages\scipy\cluster\vq.py", line 454, in kmeans
    guess = _kpoints(obs, k)
  File "C:\Users\bebag\AppData\Local\Programs\Python\Python39\lib\site-packages\scipy\cluster\vq.py", line 480, in _kpoints
    idx = np.random.choice(data.shape[0], size=k, replace=False)
  File "mtrand.pyx", line 902, in numpy.random.mtrand.RandomState.choice
ValueError: a must be greater than 0 unless no samples are taken

[VaskMykola]

I inputed this:
python noteshrink.py photo.jpg