Fixed issue with config folder location

backend/app.js

@@ -5,7 +5,7 @@ const path = require('path'),
       fs   = require('fs'),
       os   = require('os');
 
-process.env.NODE_CONFIG_DIR = `${process.cwd()}/backend/config`;
+process.env.NODE_CONFIG_DIR = `${process.cwd()}/config`;
 
 // npm modules
 const express          = require('express'),