Suna Asami

It's a nice app with brilliant thought. I got the app from the StackSocial app bundle yesterday. However, I don't know why it doesn't work at all. There are no X button in Mission Control, the keyboard shortcuts neither work. I'm using Catalina and have enabled Accessibility support just as the presentation page at https://fadel.io/MissionControlPlus.html shows. I've tryed to restart the app...