При регистрации кидает на белую страницу

Ошибка в запросе БД:
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 '"K$j2^ty'), i.password_salt))) LIMIT 1' at line 5
 
SELECT i.*, IFNULL(c.name, '') as city_name, IFNULL(c.id, 0) as city_id, u.nickname as inviter_nickname
FROM cms_users i
LEFT JOIN cms_geo_cities as c ON c.id = i.city
LEFT JOIN cms_users as u ON u.id = i.inviter_id
WHERE (i.email = 'sales@tetdrive.pro') AND (i.password = MD5(CONCAT(MD5('M95@'4$"K$j2^ty'), i.password_salt)))
LIMIT 1
Последние вызовы:
 
getItem() @ /home/tetdrive/public_html/system/controllers/users/model.php : 80
getUser() @ /home/tetdrive/public_html/system/core/user.php : 168
login() @ /home/tetdrive/public_html/system/controllers/auth/actions/login.php : 30
run()
call_user_func_array() @ /home/tetdrive/public_html/system/core/controller.php : 276
runExternalAction() @ /home/tetdrive/public_html/system/core/controller.php : 207
runAction() @ /home/tetdrive/public_html/system/core/core.php : 641
runController() @ /home/tetdrive/public_html/index.php : 31

 
    public static function login($email, $password, $remember=false) { 
 
        if (!preg_match("/^([a-zA-Z0-9\._-]+)@([a-zA-Z0-9\._-]+)\.([a-zA-Z]{2,4})$/i", $email)){
            return false;
        }
 
        $model = cmsCore::getModel('users');
 
        $model->filterEqual('email', $email);
        $model->filterFunc('password', "MD5(CONCAT(MD5('{$password}'), i.password_salt))");
 
...