Deployment error in code, used to say something like #Object not found now it just says

error

info:    Creating snapshot 1.0.0-38
info   Uploading: [=============================] 100%
info:    Updating app chat_room
info:    Activating snapshot 1.0.0-38 for chat_room
info:    Starting app chat_room
error:   Error running command deploy
error:   Nodejitsu Error (500): Internal Server Error
error:   
error:   There was an error while attempting to start the app
error:   Error spawning drone
error:   Script prematurely exited
error:   
error:   This type of error is usually a user error.
error:   Error output from app:
error:   
error:   info: socket.io started
error:   /opt/haibu/apps/ayeayecapitan/chat_room/package/server.js:8
error:   chatter.set_sockets(chat_room.sockets);
error:           ^
help:    For help with this error contact Nodejitsu Support:
help:      webchat: <http://webchat.nodejitsu.com/>
help:          irc: <irc://chat.freenode.net/#nodejitsu>
help:        email: <support@nodejitsu.com>
help:    

index.js of chatter module

var all_sockets = null;

exports.set_sockets = function(sockets) {
  all_sockets = sockets;
};


exports.connect_chatter = function  (config) {

  

  config.socket.emit('entrance', {message: 'Welcome to the chat room!'});
  all_sockets.emit('entrance', {message: config.username + ' is online.'});

  config.socket.on('disconnect', function  () {
    all_sockets.emit('exit', {message: config.username + ' has disconnected.'});
  });

  config.socket.on('chat', function  (data) {
    all_sockets.emit('chat', {message: config.username + ' says: ' + data.message});
  });
};

exports.failure = function  (socket) {
  socket.emit('error', {message: 'Please log in to the chatroom.'});
};

server.js

var io = require('socket.io'),
  connect = require('connect'),
  chatter = require('chatter');

var app = connect().use(connect.static('public')).listen(8000);
var chat_room = io.listen(app);

chatter.set_sockets(chat_room.sockets);

chat_room.sockets.on('connection', function (socket) {
  chatter.connect_chatter({
    socket: socket,
    username: socket.id
  });
});