Fix null check in validation and handle exceptions in scraper

scrapers/rpdb.py

@@ -96,6 +96,8 @@ async def update_rpdb_posters(
         if updated_poster:
             meta.poster = updated_poster
 
-    await asyncio.gather(*(update_poster(meta) for meta in metas.metas))
+    await asyncio.gather(
+        *(update_poster(meta) for meta in metas.metas), return_exceptions=True
+    )
 
     return metas

utils/validation_helper.py

@@ -245,7 +245,7 @@ def validate_parent_guide_nudity(metadata, user_data: schemas.UserData) -> bool:
     Returns False if the content should be filtered out based on user preferences.
     """
     # Strict policy for adult genres.
-    if "Adult" in metadata.genres:
+    if metadata.genres and "Adult" in metadata.genres:
         return False
 
     # Skip validation if filters are disabled