Update app.py

app.py

@@ -723,5 +723,5 @@ with gr.Blocks(theme=gr.themes.Default(), css=css) as app:
     )
 
 if __name__ == "__main__":
-    app.queue(concurrency_count=3, max_size=20)
+    app.queue(max_size=20)
     app.launch(debug=True)