update.

app.py

@@ -501,5 +501,5 @@ scheduler.add_job(restart_space, "interval", hours=3) # restarted every 3h
 scheduler.add_job(update_dynamic_files, "interval", hours=2) # launched every 2 hour
 scheduler.start()
 
-# demo.queue(default_concurrency_limit=40).launch()
-demo.queue(concurrency_count=40).launch()
+demo.queue(default_concurrency_limit=40).launch()
+# demo.queue(concurrency_count=40).launch()