Error on website deployment to Azure keystone.js

I am trying to deploy a plain keystone.js starter application built in node.js, to Azure Website's Shared Tier.

I am getting an error after the deployment

The page cannot be displayed because an internal server error has occurred.

I thought it might be because the main server file was called keystone.js so I renamed it to index.js. This didnt fix it.

Next, I thought it could be an issue because keystone defaults to port 3000 so I added in port information in my index.js file. Here it is:

// Simulate config options from your production environment by
// customising the .env file in your project's root folder.
require('dotenv').load();

// Require keystone
var keystone = require('keystone');

// Initialise Keystone with your project's configuration.
// See http://keystonejs.com/guide/config for available options
// and documentation.

keystone.init({

    'name': 'Magic Site',
    'brand': 'Magic Site',

    'less': 'public',
    'static': 'public',
    'favicon': 'public/favicon.ico',
    'views': 'templates/views',
    'view engine': 'jade',

    'mongo': "redacted",

    'port': process.env.PORT || 1337,

    'auto update': true,
    'session': true,
    'auth': true,
    'user model': 'User',
    'cookie secret': 'redacted'

});

// Load your project's Models

keystone.import('models');

// Setup common locals for your templates. The following are required for the
// bundled templates and layouts. Any runtime locals (that should be set uniquely
// for each request) should be added to ./routes/middleware.js

keystone.set('locals', {
    _: require('underscore'),
    env: keystone.get('env'),
    utils: keystone.utils,
    editable: keystone.content.editable
});

// Load your project's Routes

keystone.set('routes', require('./routes'));

// Setup common locals for your emails. The following are required by Keystone's
// default email templates, you may remove them if you're using your own.

// Configure the navigation bar in Keystone's Admin UI

keystone.set('nav', {
    'posts': ['posts', 'post-categories'],
    'galleries': 'galleries',
    'enquiries': 'enquiries',
    'users': 'users'
});

// Start Keystone to connect to your database and initialise the web server

keystone.start();

Still no luck. However, this works great on my local machine, just not in Azure. Any ideas?

UPDATE: I updated my main server file to be named "server.js". I did some digging and looked at the deployment log in Azure and found this:

Command: "D:\home\site\deployments\tools\deploy.cmd"
Handling node.js deployment.
KuduSync.NET from: 'D:\home\site\repository' to: 'D:\home\site\wwwroot'
Deleting file: 'index.js'
Copying file: 'package.json'
Copying file: 'server.js'
Using start-up script server.js from package.json.
Generated web.config.
Node.js versions available on the platform are: 0.6.17, 0.6.20, 0.8.2, 0.8.19, 0.8.26, 0.8.27, 0.10.5, 0.10.18, 0.10.21, 0.10.24, 0.10.26, 0.10.28, 0.10.29.
Selected node.js version 0.10.29. Use package.json file to choose a different version.
Updating iisnode.yml at D:\home\site\wwwroot\iisnode.yml
Finished successfully.