Update app.py

app.py

@@ -23,7 +23,7 @@ sid_map = {
 
 def vc_fn(sid, input_audio, vc_transform):
     if input_audio is None:
-        return(type(input_audio))
+        return  type(input_audio), None
         return "You need to upload an audio", None
     sampling_rate, audio = input_audio
     # print(audio.shape,sampling_rate)