When I start my npm that it go back to my my-app so it doen't work. and when i want install any new like react-bootstrap it also go to my-app

When I start my npm that it go back to my my-app so it doen't work. and when i want install any new like react-bootstrap it also go to my-app

PS C:\Users\Rizuu\Desktop\zip\javascript-learning\my-app> npm start PS C:\Users\Rizuu\Desktop\zip\javascript-learning\my-app>