Update kinopoisk.py

Author: alonezw

Contents/Libraries/Shared/kinoplex/sources/kinopoisk.py

@@ -273,7 +273,8 @@ def load_meta(self, metadata):
             metadata['original_title'] = movie_data['nameOriginal']
 
         metadata['tagline'] = movie_data.get('slogan', '')
-        metadata['content_rating_age'] = int(movie_data.get('ratingAgeLimits').replace('age', '') or 0)
+        if movie_data.get('ratingAgeLimits'):
+            metadata['content_rating_age'] = int(movie_data.get('ratingAgeLimits').replace('age', '') or 0)
         try:
             metadata['year'] = int(movie_data.get('year', ''))
         except: