Error: Cannot find module './development'

I am trying to clone and run this https://github.com/martijnboland/appoints-api-node.git

After cloning and doing npm install, when I try to run it, I get the following error:

module.js:340
    throw err;
          ^
Error: Cannot find module './development'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (/appoints-api-node/config/index.js:3:18)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.require (module.js:364:17)