Push notification not working register

This feature did not work in my code, I’m trying to get the token device on iOS but it still fails.

ionic.Platform.ready(function() {
window.plugins.pushNotification.register(
function(token){
    alert(token);
},
function(){
  alert('Error al registrarse en el servidor APNS');
},
{
    "badge":"true",
    "sound": "true",
    "alert": "true",
    "ecb": "onNotificationAPN"
});
});

Nor send me any errors, testing with gapDebug. Can anyone help me with this error?

Thanks