EmberFire error while trying to send data to the server. What am I doing wrong?

Question

Ember.js

Good morning/afternoon/evening.
I decided to make a blog on emberfire, I did everything according to the instructions from here https://www.firebase.com/docs/web/libraries/ember/... and from the YouTube video from their off-channel. I ran into a problem, the data does not go to their cloud database, but it is written in DS, and the data entered into the database with my own hand is displayed perfectly in the application. When submitting a form, an error pops up: "Uncaught TypeError: undefined is not a function".
Update 1:
I don't know how this could be related, but the error comes from the firebase.js:334 file. Although the build is assembled, but if someone is still interested in seeing, then here is the link https://openblog.firebaseapp.com (do not throw slippers).

Answer 1

The issue was related to firebase version 1.4.3 and ebmerdata beta 16. Update firebase to 1.4.4.

Answer 2

Somewhere they missed the value, EmberFire may not have anything to do with it. Debate deeper, find the place that throws the exception.