// config/database.js
module.exports = {

	'url' : 'mongodb://lineshell_user:lineshell_pass@localhost:lineshell_db' // looks like mongodb://<user>:<pass>@mongo.onmodulus.net:27017/<db>

};

// config/database.js
module.exports = {

	'url' : 'mongodb://lineshell_user:lineshell_pass@127.0.0.1:lineshell_db' // looks like mongodb://<user>:<pass>@mongo.onmodulus.net:27017/<db>

};

Update database.js