Не работает "increment"

		$is_submitted = $this->request->has('submit');
		$team = $form->parse($this->request, $is_submitted);
		$user = cmsUser::getInstance();
		if ($is_submitted){
 
			$errors = $form->validate($this, $team);
 
			if (!$errors){
				$tournament = $this->model->getTournament($tournament_id);
 
				$team['tournament_id'] = $tournament_id;
				$team['user_id'] = $user->id;
				$team['team_name'] = $tournament['tournament_name'];
				$team['sport_system'] = $sport;
				$this->model->addTeam($team);	
 
 
 
				$team = $this->model->getItemById('sport_teams', $tournament_id);
				$this->model->update('users', $user->id, array('tournament_id' => $tournament_id, 'tournament_name' => $tournament['tournament_name']));
 
				$teams_name = $team['tournament_name']; 
 
				//if ($tournament['users_count'] >= $tournament['min_users']){
				//$this->model->setTournamentStatus($tournament_id, sport::STATUS_MODERATION);
				//}
 
 cmsCore::getController('activity')->addEntry($this->name, 'join', array(
                'subject_id'		=> $tournament_id,
                'team_id'			=> $tournament_id,
                'subject_title'		=> $team['tournament_name'],
                'subject_url'   	=> href_to_rel($this->name, 'team', $tournament_id)
            ));
 
				$this->redirectToAction('team', array($tournament_id, $sport));
 
			}
 
			if ($errors){
				cmsUser::addSessionMessage(LANG_FORM_ERRORS, 'error');
			}
 
		}