message `sh "-c" "node server.js"` failed with 1 openshift error

Hello i recently use redhat openshift and i got error when i run "rhc tail -a {application}".

i got error code :

-

npm ERR! message sh "-c" "node server.js" failed with 1

and my code:

var fs = require('fs');
var db_helper = require("./db_helper.js");
var ipaddr = process.env.OPENSHIFT_INTERNAL_IP;
var port = process.env.OPENSHIFT_INTERNAL_PORT || 8080;
var http = require('http');
http.createServer().listen(port, ipaddr, function(){
console.log('Server started on %s...', Date(Date.now()));
});
var io = require('socket.io').listen(http);



io.sockets.on('connection',  function(client) {
  console.log('Client connected'); 



  client.on('status', function(data) {
    console.log(data);
      db_helper.get_status(data,function(data) {
        io.sockets.emit('populate', data);

      });

  });
  db_helper.get_statusadmin(function(data) {
        io.sockets.emit('adminpopulate', data);

      });
  client.on('statusadmin', function (data) {
    db_helper.get_statusadmin(function(data) {
        io.sockets.emit('adminpopulate', data);

      });
  });

});

How to solve it?