Update app.py

app.py

@@ -231,6 +231,8 @@ with gr.Blocks(css_paths="app.css") as demo:
             
             clear_btn.click(clear_history, inputs=[], outputs=[history])
 
-
 if __name__ == "__main__":
-    demo.queue(default_concurrency_limit=20).launch(ssr_mode=False)
+    demo = gr.Blocks(css_paths="app.css")
+    with demo:
+        app
+    demo.queue(default_concurrency_limit=20).launch(ssr_mode=False)