Ionic 2 - iOS NotRegistered - ios

Question

I have done an App in Ionic 2 with the phonegap-plugin-push for notifications.
It works really well with Android but when I try to run it on the iOS it have a few problems.
I can get the registration token but when I do a push message I get the error: NotRegistered as response.
What can it be? The wrong certeficates or some bug in code?
I'm using Ionic 2 on a windows, using phonegap to compile the app to iOS so I have to generate the certificates with openSSL.
There is a few of the code for the push notifications:
config.xml
<plugin name="phonegap-plugin-push" spec="1.8.2">
<variable name="SENDER_ID" value="883847118563"/>
</plugin>
app.component.ts
import {Push, PushObject, PushOptions} from "#ionic-native/push";
(...)
platform.ready().then(() => {
(...)
this.initPushNotification();
});
initPushNotification() {
if (!this.platform.is('cordova')) {
(...)
}
const options: PushOptions = {
android: {
senderID: "8838XXXXXXXX"
},
ios: {
senderID: "8838XXXXXXXX" ,
gcmSandbox: "true",
alert: "true",
badge: false,
sound: 'true'
},
windows: {}
};
const pushObject: PushObject = this.push.init(options);
pushObject.on('registration').subscribe((data: any) => {
(...)
});
pushObject.on('notification').subscribe((data: any) => {
(...)
});
pushObject.on('error').subscribe(error => console.error('Error with Push plugin', error));
}
app.module.ts
import { CloudSettings, CloudModule } from '#ionic/cloud-angular';
const cloudSettings: CloudSettings = {
'core': {
'app_id': 'bdeXXXX'
},
'push': {
'sender_id': '8838XXXXXXXX',
'pluginConfig': {
'ios': {
'badge': true,
'sound': true
},
'android': {
'iconColor': '#ff0000'
}
}
}
};
Thank you in advance for the help.