Would you plz that us know that the step "npm run poll" cant work?

[Chunontherocks]

Have been set up config.json twitter API and firebase auth string but is still not working.
We have two questions:
One of that is shall we need to set something in the firebase.
Other one, shall we have to set up the .data/stock.json and would you let us know some samples.
Thank you a lot!