Debugger is not working in visual studio code

I am using vs code. And I am creating a websocket example. When I am writing this app I felt a need of opening debugger but when I start debugging it doesn’t work.
Buttons of debugger are not working. To clarify this I am uploading an image
Debugger’s button

And the repl of debug console is also not working. Any help will we greatly appreciated. Thanks to whole stack overflow community