passport js missing credentials

I see your req.body contains {password: 'password', email: '[email protected]'}. email is not what passportjs is looking for, but username is. You can either change your input names on your HTML/JS, or you can change the default parameters passportjs is looking for in req.body. You need to apply these changes where you define your strategy.

passport.use(new LocalStrategy({ // or whatever you want to use
    usernameField: 'email',    // define the parameter in req.body that passport can use as username and password
    passwordField: 'password'
  },
  function(username, password, done) { // depending on your strategy, you might not need this function ...
    // ...
  }
));

In Router.post:

router.post('/', passport.authenticate('local-signup', {
    successRedirect: '/dashboad',
    failureRedirect: '/',
    badRequestMessage: 'Your message you want to change.', //missing credentials
    failureFlash: true
}, function(req, res, next) {
...