Update app.py

app.py

@@ -60,12 +60,11 @@ demo = setup_interface(DESCRIPTION, css)
 demo.app.mount("/file", StaticFiles(directory="."), name="file")
 
 if __name__ == "__main__":
-    demo.launch(
+    demo.queue(max_size=20).launch(
         server_name="0.0.0.0",
         server_port=7860,
         share=False,
-        debug=True,
-        enable_queue=True
+        debug=True
     )
 else:
     app = demo.app