Update app.py

app.py

@@ -36,6 +36,7 @@ def respond_to_question_llama(transcript, question):
 def audio_transcribe(inputs):
     if inputs is None:
         raise gr.Error("No audio file submitted! Please upload or record an audio file before submitting your request.")
+        return
 
     text = pipe(inputs, batch_size=BATCH_SIZE, return_timestamps=True)['text']