root@retropie:/home/pi# python3 /opt/RetroFlag/SafeShutdown.py
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/gpiozero/pins/pi.py", line 71, in pin
    pin = self.pins[n]
KeyError: 14

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/gpiozero/pins/data.py", line 863, in from_revision
    }[revcode_type]
KeyError: 13

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/RetroFlag/SafeShutdown.py", line 11, in <module>
    led = LED(ledPin)
  File "/usr/lib/python3/dist-packages/gpiozero/devices.py", line 95, in __call__
    self = super(GPIOMeta, cls).__call__(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/gpiozero/output_devices.py", line 141, in __init__
    pin, active_high, initial_value, pin_factory=pin_factory
  File "/usr/lib/python3/dist-packages/gpiozero/output_devices.py", line 47, in __init__
    super(OutputDevice, self).__init__(pin, pin_factory=pin_factory)
  File "/usr/lib/python3/dist-packages/gpiozero/mixins.py", line 69, in __init__
    super(SourceMixin, self).__init__(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/gpiozero/devices.py", line 374, in __init__
    pin = self.pin_factory.pin(pin)
  File "/usr/lib/python3/dist-packages/gpiozero/pins/pi.py", line 73, in pin
    pin = self.pin_class(self, n)
  File "/usr/lib/python3/dist-packages/gpiozero/pins/rpigpio.py", line 94, in __init__
    super(RPiGPIOPin, self).__init__(factory, number)
  File "/usr/lib/python3/dist-packages/gpiozero/pins/pi.py", line 241, in __init__
    factory.pi_info.physical_pin(repr(self))
  File "/usr/lib/python3/dist-packages/gpiozero/pins/__init__.py", line 130, in <lambda>
    lambda self: self._get_pi_info(),
  File "/usr/lib/python3/dist-packages/gpiozero/pins/pi.py", line 90, in _get_pi_info
    self._info = pi_info(self._get_revision())
  File "/usr/lib/python3/dist-packages/gpiozero/pins/data.py", line 1156, in pi_info
    return PiBoardInfo.from_revision(revision)
  File "/usr/lib/python3/dist-packages/gpiozero/pins/data.py", line 957, in from_revision
    raise PinUnknownPi('unable to parse new-style revision "%x"' % revision)
gpiozero.exc.PinUnknownPi: unable to parse new-style revision "a020d3"