JSON object issue

[atxbyea]

Looks like whatever is returned is not valid JSON ?

2024-01-12 12:17:58.260 ERROR (MainThread) [homeassistant.setup] Error during setup of component min_renovasjon Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/setup.py", line 332, in _async_setup_component result = await task ^^^^^^^^^^ File "/usr/local/lib/python3.11/concurrent/futures/thread.py", line 58, in run result = self.fn(*self.args, **self.kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/config/custom_components/min_renovasjon/__init__.py", line 59, in setup min_renovasjon = MinRenovasjon( ^^^^^^^^^^^^^^ File "/config/custom_components/min_renovasjon/__init__.py", line 74, in __init__ self._kalender_list = self._get_calendar_list() ^^^^^^^^^^^^^^^^^^^^^^^^^ File "/config/custom_components/min_renovasjon/__init__.py", line 141, in _get_calendar_list kalender_list = self._parse_calendar_list(tommekalender, fraksjoner) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/config/custom_components/min_renovasjon/__init__.py", line 157, in _parse_calendar_list tommekalender_json = json.loads(tommekalender) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/json/__init__.py", line 339, in loads raise TypeError(f'the JSON object must be str, bytes or bytearray, ' TypeError: the JSON object must be str, bytes or bytearray, not NoneType