Select a query for analysis before getting its value

I'm new to object c and I am using parse.com as my database for my social media app. What I am trying to do is grab the user's post from my POST table. I am using pointers to get the username from my USER table and this goes through a fine as you will see in my code posted below, but when I use fetchifneeded before assigning the UILabel to the user post, I get this error so far "Key History has no data. Call fetchIfNeeded before retrieving its value. I appreciate any help and thank you in an advanced way, if I don't make it so that I don't understand myself, all the more happy to expand something.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object {
    if (indexPath.section == self.objects.count) {
        UITableViewCell *cell = [self tableView:tableView cellForNextPageAtIndexPath:indexPath];
        return cell;
    }

    static NSString *CellIdentifier = @"StoryCell";

    NinetiesCell *cell = (NinetiesCell *)[self.tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    //for the post of the user
    PFObject *user = object[@"User"];
    [user fetchIfNeeded]; 
    //get username from pointer
    cell.userName.text = user[@"username"];

    PFObject *story = [object objectForKey:@"Story"];
    [story fetchIfNeeded];
    cell.story.text = [object objectForKey:@"Story"];

    // Configure the cell

    NSDate *updated = [object createdAt];

    NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];

    [dateFormat setDateFormat:@"EEE, MMM d, h:mm a"];

    cell.dateLabel.text = [NSString stringWithFormat:@"%@", [dateFormat stringFromDate:updated]];

    return cell;
}