Update app.py

app.py

@@ -42,14 +42,15 @@ def handle_audio(audio):
     return handle_text(transcriptions)
 
 def chatbot(text, img, audio):
-    text_output = handle_text(text) 
-    img_output = handle_image(img) 
-    audio_output = handle_audio(audio) 
+    text_output = handle_text(text) if text is not None else ''
+    img_output = handle_image(img) if img is not None else ''
+    audio_output = handle_audio(audio) if audio is not None else ''
 
     outputs = [o for o in [text_output, img_output, audio_output] if o]
     return "\n".join(outputs)
 
 
+
 iface = gr.Interface(
     fn=chatbot,
     inputs=[