argenteam provider: fix null exception and improve scoring

libs/subliminal_patch/providers/argenteam.py

@@ -76,9 +76,11 @@ class ArgenteamSubtitle(Subtitle):
             if video.series and (sanitize(self.title) in (
                      sanitize(name) for name in [video.series] + video.alternative_series)):
                 matches.add('series')
+
             # season
             if video.season and self.season == video.season:
                 matches.add('season')
+
             # episode
             if video.episode and self.episode == video.episode:
                 matches.add('episode')
@@ -87,6 +89,9 @@ class ArgenteamSubtitle(Subtitle):
             if video.tvdb_id and str(self.tvdb_id) == str(video.tvdb_id):
                 matches.add('tvdb_id')
 
+            # year (year is not available for series, but we assume it matches)
+            matches.add('year')
+
         elif isinstance(video, Movie) and self.movie_kind == 'movie':
             # title
             if video.title and (sanitize(self.title) in (
@@ -230,10 +235,10 @@ class ArgenteamProvider(Provider, ProviderSubtitleArchiveMixin):
         has_multiple_ids = len(argenteam_ids) > 1
         for aid in argenteam_ids:
             response = self.session.get(url, params={'id': aid}, timeout=10)
-
             response.raise_for_status()
             content = response.json()
 
+            if content is not None:  # eg https://argenteam.net/api/v1/episode?id=11534
                 imdb_id = year = None
                 returned_title = title
                 if not is_episode and "info" in content: