cloudkit subscription error

i am trying to create subscriptions but i see some weird error popping out.

I have tried to search google and stackoverflow without any luck

Can someone help me please?

Code is the following

    func SottoscrizioneAccessori()->Void
    {
        if UserDefaults.standard.bool(forKey: "SUBACCESSORI_\(Manager.AI.StatoAttuale.NodoAI.PIVA)") == false
        {
            
            let predicate=NSPredicate(format: "RefAzienda = %@", Manager.AI.StatoAttuale.NodoAI.PIVA)
            let subscription=CKQuerySubscription(recordType: "CKAccessori",
                                                 predicate:predicate,
                                                 subscriptionID: "CKSUBACCESSORI",
                                                 options: [.firesOnRecordUpdate, .firesOnRecordCreation])
            let nInfo=CKNotificationInfo()
            
            nInfo.alertBody = "Accessori Aggiornati"
            nInfo.shouldBadge=false
            
            subscription.notificationInfo = nInfo
            Manager.AI.pubDB.save(subscription, completionHandler: { (retRecord, error) in
                if error != nil
                {
                    print("SUB_ACCESSORI - sottoscrizione fallita con errore \(error?.localizedDescription ?? "-err-")")
                }
                else
                {
                    print("SUB_ACCESSORI - sottoscrizione creata con successo")
                    UserDefaults.standard.set(true, forKey: "SUBACCESSORI_\(Manager.AI.StatoAttuale.NodoAI.PIVA)")

                }
            })
        }
    }

the database is the development one (tried also to force the production one and the error was that i cannot create subscription on production container

The error in the console is:

SUB_ACCESSORI - sottoscrizione fallita con errore Error saving record subscription with id CKSUBACCESSORI to server: Deployed schema UUID does not match supplied parent UUID.

the development database is already deployed in production... everything is "correct" (name of recordtype, fields, etc.etc.)...

i am not able to find this kind of error anywhere...

someone?