TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'

[cvanaken]

Hi,

I was able to run the mubi plugin on Libreelec 8.2.1 (kodi 17.6) one time with inputstream.adaptive installed, after this run I always get the following error in the log:

11:37:59.297 T:547876081664 ERROR: Control 52 in window 10025 has been asked to focus, but it can't
11:38:01.307 T:547088232672 WARNING: [kodiswift] No converter provided, unicode should be used, but returning str value
11:38:01.308 T:547088232672 WARNING: Previous line repeats 1 times.
11:38:01.308 T:547088232672 NOTICE: Logging in with username: xxxxxx and udid: xxxxxxx
11:38:01.861 T:547088232672 NOTICE: Login Successful and got token xxxxxxxx
11:38:02.408 T:547088232672 NOTICE: Successfully got country as BE
11:38:02.413 T:547088232672 NOTICE: [kodiswift] Request for "/" matches rule for function "index"
11:38:03.178 T:547088232672 ERROR: EXCEPTION Thrown (PythonToCppException) : -->Python callback/script returned the following error<--
- NOTE: IGNORING THIS CAN LEAD TO MEMORY LEAKS!
Error Type: <type 'exceptions.TypeError'>
Error Contents: unsupported operand type(s) for *: 'NoneType' and 'int'
Traceback (most recent call last):
File "/storage/.kodi/addons/plugin.video.mubi/addon.py", line 46, in
plugin.run()
File "/storage/.kodi/addons/script.module.kodiswift/lib/kodiswift/plugin.py", line 307, in run
items = self._dispatch(self.request.path)
File "/storage/.kodi/addons/script.module.kodiswift/lib/kodiswift/plugin.py", line 326, in _dispatch
resp = view_func(**items)
File "/storage/.kodi/addons/plugin.video.mubi/addon.py", line 17, in index
films = mubi.now_showing()
File "/storage/.kodi/addons/plugin.video.mubi/resources/lib/mubi.py", line 131, in now_showing
films = [self.get_film_metadata(film) for film in json.loads(self.get_now_showing_json())]
File "/storage/.kodi/addons/plugin.video.mubi/resources/lib/mubi.py", line 114, in get_film_metadata
rating=film_overview['average_rating'] * 2, # Out of 5, kodi uses 10
TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'
-->End of Python script error report<--
11:38:03.369 T:547876081664 ERROR: GetDirectory - Error getting plugin://plugin.video.mubi/
11:38:03.373 T:547876081664 ERROR: CGUIMediaWindow::GetDirectory(plugin://plugin.video.mubi/) failed

Any info is very appreciated, thank you very much!