How to properly share one CKREcord with CKShare in obj-c

When I trying to set share record I get: NSOperationQueue * quwuw = [[NSOperationQueue alloc] init]; [quwuw setMaxConcurrentOperationCount:1];

[self createOrFetchZone:^(CKRecordZone *rzone, NSError *error) {
CKRecordID *recordID = [[CKRecordID alloc] initWithRecordName:recordId zoneID:custZone.zoneID];
[[self privateCloudDatabase] fetchRecordWithID:recordID completionHandler:^(CKRecord *record, NSError *error) {
    
    
    if (error) {
        dispatch_async(dispatch_get_main_queue(), ^{
            prephandler(nil, nil,error);
        });
        return;
    }
    
    CKShare * share = [[CKShare alloc] initWithRootRecord:record];
        
        share[CKShareTitleKey] = @"Some title";
        [share setPublicPermission:CKShareParticipantPermissionReadWrite];
        CKModifyRecordsOperation * op = [[CKModifyRecordsOperation alloc] initWithRecordsToSave:@[share, record] recordIDsToDelete:nil];
        [op setModifyRecordsCompletionBlock:^(NSArray<CKRecord *> * _Nullable savedRecords, NSArray<CKRecordID *> * _Nullable deletedRecordIDs, NSError * _Nullable operationError) {
            if (operationError == nil) {
                dispatch_async(dispatch_get_main_queue(), ^{
                    prephandler(share, [CKContainer defaultContainer],operationError);
                });
                
            }
            else {
                dispatch_async(dispatch_get_main_queue(), ^{
                    prephandler(share, [CKContainer defaultContainer],operationError);
                });
            }
        }];
        [op  setDatabase:[self privateCloudDatabase]];
    [quwuw addOperation:op];
}];
}];

I get error: Invalid Arguments" (12/2006); server message = "Chaining supported for hierarchical sharing only"

Any advices for this?