Can not run it locally

[solsarratea]

This were the only changes I've done

And these is the message error I get:

You have requested the root of http://localhost:9000. This is likely a mistake. netlify-lambda serves functions at http://localhost:9000/.netlify/functions/your-function-name; please fix your code.

I tried to debug the middlewares involved but could not make any conclusion, neither now how to fix it.

This is a router path success:

This is an app path failure:

It seems like paths for the router works, but not for the app. Maybe there is something I am missing to run it locally?

Thanks in advanced