Update app.py

app.py

@@ -45,10 +45,10 @@ def getTrigger(ad: int, a: list, max: int = 1024) -> int:
 
 def extract_cover_image(mp3_file):
     audio = MP3(mp3_file, ID3=ID3)
-    if audio == None:
-        gr.Error()
-        raise("Missing MP3 Tag")
+    if audio.tags == None:
         gr.Error("Mp3 is missing tags")
+        raise("Missing MP3 Tag")
+        
         return None
     for tag in audio.tags.values():
         if isinstance(tag, APIC):