Update app.py

app.py

@@ -176,7 +176,7 @@ with gr.Blocks(css=css) as demo:
         inputs=[prompt_input, style_radio, width_slider, height_slider, seed_slider],
         outputs=[output_image],
         queue=True,
-        concurrency=250
+        concurrency_limit=250
     )
 
 demo.queue(max_size=250).launch(show_api=False, share=False)