How to start server?

[guerrrero]

I found this app very useful, but don't know how to deploy it on my own server (newbie in node).
Firstly, i printed 'npm install' and dependencies was installed successfully.
But not 'npm start' not 'node server/server.js' after installing don't working.
'npm start' writes:
`npm start
npm ERR! missing script: start

npm ERR! A complete log of this run can be found in:
npm ERR! /home/pi/.npm/_logs/2017-12-03T14_54_03_474Z-debug.log
`

What I must do?