@JosielSoares ,
Make sure you don't use any unusual symbols in the package name.
Confirm if it is fixed for you.

Yes, It should be working. You can give a try with Free Edition.

Update v3.2 with "Confirm on exit" Custom Text:
https://websitetoapk.com/forums/222-update-v3-2-now-available

@amosb , For your information, we have a Platinum Plan which we hide from website while we released Free Plan. Platinum costs $149 for 50 Apps.

@amosb , Thank you very much for the appreciation. We need your continuous support in developing it more better.

We will surely discuss on this. However, whenever you need customized plans for PushAdmin, feel free to chat with our support assists, they can help you on this.

Update v3.2 with XSS Issue Fix Available.

https://websitetoapk.com/forums/222-update-v3-2-now-available

Update v3.2 with API Access via PushAdmin Released:
https://websitetoapk.com/forums/222-update-v3-2-now-available

Update v3.2 with SDK Level 27 Released:
https://websitetoapk.com/forums/222-update-v3-2-now-available

Announcing a new release v3.2 Pro Plus with Updated SDK Level 27, Push Notification API Access, Individual Push Notifications & much more.

Changelog (Added Features)

GDPR Compliant AdMob Functions (JS APIs)
Allow or DisAllow Screenshot
XSS Vulnerability Issue Fix (via File Access Option)
Push Notifications API Access (Via PushAdmin)
Scheduled Notifications (Via PushAdmin)
Updated API Level 27
New JavaScript APIs : getFirebaseDeviceToken, subscribeBroadcastPush
unsubscribeBroadcastPush, showInterstitialAd, disableNpa, enableNpa, isNpaEnabled
Individual Push Notofications (Via PushAdmin API)
**Bug Fixes

https://websitetoapk.com/download.html

@joseabantomarin , It is not possible yet, it can not keep running its web application processes while in background.