update.

web-demos/hugging_face/app.py

@@ -676,5 +676,5 @@ with gr.Blocks(theme=gr.themes.Monochrome(), css=css) as iface:
     )
     gr.Markdown(article)
 
-iface.queue(concurrency_count=1)
+iface.queue()
 iface.launch(debug=True)