Fail on color initialization

[Speedo2k]

Traceback (most recent call last):
File "C:/Users/marek/pypdf/pdf/pdf/naivetest.py", line 25, in
main()
File "C:/Users/marek/pypdf/pdf/pdf/naivetest.py", line 12, in main
for i, page in enumerate(doc.pages):
File "C:\Users\marek\pypdf\pdf\venv\lib\site-packages\naivepdf\pdfdocument.py", line 84, in pages
i.interpret()
File "C:\Users\marek\pypdf\pdf\venv\lib\site-packages\naivepdf\pdfpage.py", line 247, in interpret
getattr(self, operator)()
File "C:\Users\marek\pypdf\pdf\venv\lib\site-packages\naivepdf\pdfpage.py", line 352, in cs
self.graphics_states['non_stroking_color'] = self.initial_color(color_space)
File "C:\Users\marek\pypdf\pdf\venv\lib\site-packages\naivepdf\pdfpage.py", line 263, in initial_color
initial_color = [0.0] * color_space['value']
TypeError: can't multiply sequence by non-int of type 'NoneType'
color_space: {'name': b'Lab', 'value': None}

pdf: http://www.mqq.pl/DL.pdf