- if not age_limit:
- age_limit = int_or_none(self._search_regex(r'\(FSK\s*(\d+)\)\s*$', description, 'age limit', default=None))
+ if not age_limit and description:
+ age_limit = int_or_none(self._search_regex(
+ r'\(FSK\s*(\d+)\)\s*$', description, 'age limit', default=None))