2020-10-04 23:45:36 ERROR (MainThread) [homeassistant.components.sensor] command_line: Error on device update!
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 346, in _async_add_entity
    await entity.async_device_update(warning=False)
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 471, in async_device_update
    await self.hass.async_add_executor_job(self.update)  # type: ignore
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/src/homeassistant/homeassistant/components/command_line/sensor.py", line 128, in update
    self._state = self._value_template.render_with_possible_json_value(
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 323, in render_with_possible_json_value
    return run_callback_threadsafe(
  File "/usr/local/lib/python3.8/concurrent/futures/_base.py", line 439, in result
    return self.__get_result()
  File "/usr/local/lib/python3.8/concurrent/futures/_base.py", line 388, in __get_result
    raise self._exception
  File "/usr/src/homeassistant/homeassistant/util/async_.py", line 53, in run_callback
    future.set_result(callback(*args))
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 355, in async_render_with_possible_json_value
    return self._compiled.render(variables).strip()
  File "/usr/local/lib/python3.8/site-packages/jinja2/environment.py", line 1090, in render
    self.environment.handle_exception()
  File "/usr/local/lib/python3.8/site-packages/jinja2/environment.py", line 832, in handle_exception
    reraise(*rewrite_traceback_stack(source=source))
  File "/usr/local/lib/python3.8/site-packages/jinja2/_compat.py", line 28, in reraise
    raise value.with_traceback(tb)
  File "<template>", line 1, in top-level template code
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 969, in regex_findall_index
    return re.findall(find, value, flags)[index]
IndexError: list index out of range