TypeError: Logger.exception() missing 1 required positional argument: 'msg'

[sentry-io]

Sentry Issue: ROBOTOFF-238

JSONDecodeError: Expecting value: line 1 column 1 (char 0)
  File "requests/models.py", line 974, in json
    return complexjson.loads(self.text, **kwargs)
  File "__init__.py", line 346, in loads
    return _default_decoder.decode(s)
  File "json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None

JSONDecodeError: Expecting value: line 1 column 1 (char 0)
  File "robotoff/metrics.py", line 123, in save_facet_metrics
    count = get_product_count(server_type, country_tag)
  File "robotoff/metrics.py", line 111, in get_product_count
    ).json()

TypeError: Logger.exception() missing 1 required positional argument: 'msg'
  File "robotoff/metrics.py", line 125, in save_facet_metrics
    logger.exception()

Job "<Job (id=e0bbc75a56974b399074243ab7dfb00c name=save_facet_metrics)>" raised an exception