diff --git a/backend/download/src/thumbnails.py b/backend/download/src/thumbnails.py
index 87e88e64..5004f932 100644
--- a/backend/download/src/thumbnails.py
+++ b/backend/download/src/thumbnails.py
@@ -219,6 +219,10 @@ class ThumbManager(ThumbManagerBase):
     def embed_video_art(self, json_data: dict):
         """embed video artwork"""
         file_path = os.path.join(self.MEDIA_DIR, json_data["media_url"])
+        if not os.path.exists(file_path):
+            print(f"{self.item_id}: skip art embed, file not found")
+            return
+
         video = MP4(file_path)
 
         thumb_path = self.vid_thumb_path(absolute=True)
diff --git a/backend/video/serializers.py b/backend/video/serializers.py
index 78de3464..2182272a 100644
--- a/backend/video/serializers.py
+++ b/backend/video/serializers.py
@@ -98,7 +98,7 @@ class VideoSerializer(serializers.Serializer):
     channel = ChannelSerializer(required=False)
     comment_count = serializers.IntegerField(allow_null=True, required=False)
     date_downloaded = serializers.IntegerField()
-    description = serializers.CharField(allow_null=True)
+    description = serializers.CharField(allow_null=True, required=False)
     media_size = serializers.IntegerField()
     media_url = serializers.CharField()
     player = PlayerSerializer()
diff --git a/backend/video/src/index.py b/backend/video/src/index.py
index 5226e651..4fdc794e 100644
--- a/backend/video/src/index.py
+++ b/backend/video/src/index.py
@@ -449,7 +449,7 @@ class YoutubeVideo(YouTubeItem, YoutubeSubtitle):
 
         title = self.json_data["title"]
         artist = self.json_data["channel"]["channel_name"]
-        description = self.json_data["description"]
+        description = self.json_data.get("description", "")
         to_embed = self._get_to_embed()
 
         video = MP4(file_path)