Kohai Error

config.json

{
  "config": {
    "version": "v0.0.6",
    "nick": "twitter",
    "server": "irc.myserver.com",
    "channels": [
      "#twitter"
    ],
    "plugins": {
      "twitter": {
        "track": [
          "test"
        ]
      },
      "alias": {
        "whitelist": [
          "slickplaid",
          "mama",
          "Laurel"
        ]
      },
      "irc": {
        "mute_timer": 60,
        "command_string": "!",
        "oplist": [
          "slickplaid"
        ],
        "voicelist": [],
        "banlist": []
      }
    },
    "modules": [
      "irc",
      "alias",
      "twitter",
      "translate"
    ],
    "auth": {
      "twitter": {
        "consumer_key": "removed",
        "consumer_secret": "removed",
        "access_token_key": "removed",
        "access_token_secret": "removed"
      },
      "irc": {
        "nick": "twitter",
        "password": ""
      }
    }
  }
}

error.txt

TypeError: Object.getOwnPropertyNames called on non-object
    at Function.getOwnPropertyNames (native)
    at Object.start (/home/slickplaid/Dropbox/github/kohai/lib/plugins/twitter.js:31:10)
    at /home/slickplaid/Dropbox/github/kohai/lib/kohai.js:66:29
    at Array.forEach (native)
    at Object.start (/home/slickplaid/Dropbox/github/kohai/lib/kohai.js:64:45)
    at Object.<anonymous> (/home/slickplaid/Dropbox/github/kohai/bin/kohai:8:7)
    at Module._compile (module.js:383:26)
    at Object..js (module.js:389:10)
    at Module.load (module.js:315:31)
    at Function._load (module.js:276:12)

error.with.npm.output.txt

$ npm install levenshtein
levenshtein@1.0.0 ./node_modules/levenshtein

$ node bin/kohai
info: connecting to irc.myserver.com. this will take a few moments and you might see an error message related to the cookies library.
This library has been deprecated. Please use `npm install cookies` instead.
Failed to load module twitter: TypeError: Object.getOwnPropertyNames called on non-object
TypeError: Object.getOwnPropertyNames called on non-object
    at Function.getOwnPropertyNames (native)
    at Object.start (/home/slickplaid/Dropbox/github/kohai/lib/plugins/twitter.js:31:10)
    at /home/slickplaid/Dropbox/github/kohai/lib/kohai.js:66:29
    at Array.forEach (native)
    at Object.start (/home/slickplaid/Dropbox/github/kohai/lib/kohai.js:64:45)
    at Object.<anonymous> (/home/slickplaid/Dropbox/github/kohai/bin/kohai:8:7)
    at Module._compile (module.js:407:26)
    at Object..js (module.js:413:10)
    at Module.load (module.js:339:31)
    at Function._load (module.js:298:12)