Plugin fails to load. Invalid function call to "get_battery_percentage()"

[rjDipcord]

On jayfeony's repo of pwnagotchi ver: 2.8.9 the plugin fails to load, citing the function call on line 73.

capacity = int(self.ps.get_battery_percentage().value)

The traceback from the console at pwnagotchi --debug:

Exception ignored in thread started by: <function locked_cb at 0x7f839ecd60>
Traceback (most recent call last):
    httplib_response = self._make_request(
  File "/usr/local/lib/python3.11/dist-packages/pwnagotchi/plugins/__init__.py", line 85, in locked_cb
                       ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 450, in _make_request
    cb(*args, *kwargs)
  File "/usr/local/share/pwnagotchi/custom-plugins/pisugar2.py", line 73, in on_ui_update
    six.raise_from(e, None)
  File "<string>", line 3, in raise_from
    capacity = int(self.ps.get_battery_percentage().value)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 445, in _make_request
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'get_battery_percentage'
    httplib_response = conn.getresponse()

What is this intended to be referencing? I assume that we are to be pulling battery percentage data from the pisugar server, but I can't discern where that needs to take place. However, I am not a seasoned programmer. I would like to assist in resolving this if I can though.

Thoughts?