DeafultUserGroup freezes on user save

[2012-10-01 19:08:23] (ERROR @ /connectors/security/user.php) Could not get table class for class: modAccess
[2012-10-01 19:08:23] (ERROR @ /connectors/security/user.php) Could not get table name for class: modAccess
[2012-10-01 19:08:23] (ERROR @ /connectors/security/user.php) Error 42000 executing statement: 
Array
(
    [0] => 42000
    [1] => 1064
    [2] => You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AS `modAccess` WHERE `modAccess`.`principal` = 14' at line 1
)

<?php
require_once dirname(dirname(__FILE__)).'/index.php';
$modx->request->handleRequest(array('location' => 'security/user'));