Emberjs: cannot read property 'type' of undefined

I have created a model in my ember app called ticket-stats:

import Model from 'ember-data/model';
import attr from 'ember-data/attr';

export default Model.extend({

    get_tickets_more: attr(),
    get_tickets: attr(),
    get_avg_tickets: attr()

});

The data is pulled from JSON api: http://ift.tt/249fCj1... So i have added a special adapter for this model called ticket-stats:

import JSONAPIAdapter from 'ember-data/adapters/json-api';

export default JSONAPIAdapter.extend({

    host: 'http://domain.com',
    namespace: 'data',

    pathForType: function(type) {
        return Ember.String.camelize(type);
    }
});

I get the data for this model in route:

import Ember from 'ember';

export default Ember.Route.extend({

    model () {
        var ticketData;
        this.store.query('ticket-stats', { teamID: 218, attUID: 'oc7569', useProd: 1})
                .then(function(stats) { ticketData = stats; });

        return Ember.RSVP.hash({
            currentUser: this.currentUser,
            ticketStats: ticketData
        });
    }
});

And, i get a TypeError:

ember.debug.js:32096 TypeError: Cannot read property 'type' of undefined
    at _pushInternalModel (store.js:1524)
    at push (store.js:1501)
    at finders.js:171
    at Object.Backburner.run (ember.debug.js:678)
    at _adapterRun (store.js:1733)
    at finders.js:168
    at tryCatch (ember.debug.js:53806)
    at invokeCallback (ember.debug.js:53821)
    at publish (ember.debug.js:53789)
    at ember.debug.js:32054onerrorDefault @ ember.debug.js:32096exports.default.trigger @ ember.debug.js:54476(anonymous function) @ ember.debug.js:55727Queue.invoke @ ember.debug.js:333Queue.flush @ ember.debug.js:397DeferredActionQueues.flush @ ember.debug.js:205Backburner.end @ ember.debug.js:560(anonymous function) @ ember.debug.js:1126

Any ideas as to why this is happening? This error goes away when i remove the pathForType function in the adapter, but then i get another error about getting the data from http://ift.tt/1VjQFkk?... which is not the correct URL. I have to convert to camelCase, ticket-stats => ticketStats.

Any help would be appreciated! I'm very new to Ember.