Hi, I was able to create subscriptions in my container with the following code, but now for some unknown reason, I can't create one anymore, and instead I get the error message in the title above. Thanks so much for any assistance you may be able to extend!!! Ed func subscribe() { // Only proceed if you need to create the subscription. guard !UserDefaults.standard.bool(forKey: didCreateClassTableSubscription) else { return } // Define a predicate that matches records with a tags field // that contains the word 'Swift'. //let predicate = NSPredicate(format: TRUEPREDICATE) //let predicate = NSPredicate(format: tags CONTAINS %@, Swift) let predicate = NSPredicate(format: userRef == %@, RYH.userRef) // Create a subscription and scope it to the 'FeedItem' record type. // Provide a unique identifier for the subscription and declare the // circumstances for invoking it. let subscription = CKQuerySubscription(recordType: ClassTable, predicate: predicate, subscriptionID: ClassTableCreate, options: .firesOnRec