Handle invalid JSON data from Instagram

services/instagram.py

@@ -86,5 +86,7 @@ class Instagram(object):
             result = self._get_media()
         except requests.exceptions.HTTPError as e:
             raise InstagramError('Failed to retrieve media: {0}'.format(e))
+        except json.decoder.JSONDecodeError as e:
+            raise InstagramError('Failed to retrieve media: {0}'.format(e))
         else:
             return result