Consult the Firebase database

It turns out that I am developing an application in ionic and with reference to firebase, my application has a login associated with it that works perfectly but it presents me with a problem and it is that it does not ask me the data query in the firebase.

I do explain, when I enter my mail user the application enters perfectly, but I have a tab that shows me different info that goes up to firebase, that is the query that is not doing me.

Code corresponding to the index I think I have the libraries and everything necessary for the operation of the app:

angular.module('starter', ['ionic', 'starter.controllers','starter.services',])

 .run(function ($ionicPlatform, FirebaseDB,$rootScope, $state) {
    $ionicPlatform.ready(function () {
       var ref = new Firebase('aqui va el enlace de mi firebase')

      if (window.cordova && window.cordova.plugins && window.cordova.plugins.Keyboard) {
        cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);
        cordova.plugins.Keyboard.disableScroll(true);

      }
      if (window.StatusBar) {
        // org.apache.cordova.statusbar required
        StatusBar.styleDefault();
      }
    });

    FirebaseDB.initialize();


    $rootScope.$on('$stateChangeError',
      function (event, toState, toParams, fromState, fromParams, error) {


        if (error === "NO USER") {
          event.preventDefault();
          console.log("go to login state");
          $state.go('login', {});
        }
      });

  })

corresponding to the app.js is here where the problem arises and is that as long as you do not add 'firebase' the app works but without the data query, when I add 'firebase' the screen remains blank. That is, when

angular.module('starter', ['ionic', 'starter.controllers','starter.services',´firebase'])

is that way I'm blocked from the app.