А если вот такая ошибка?
FILE: C:\Program Files\Bitrix Environment\www\bitrix\modules\main\classes\general\user.php
LINE: 435
MySQL Query Error: SELECT U.ID, U.ACTIVE, U.PASSWORD, U.LOGIN_ATTEMPTS FROM b_user U WHERE U.LOGIN='XXX' AND (EXTERNAL_AUTH_ID IS NULL OR EXTERNAL_AUTH_ID='') [Unknown column 'U.LOGIN_ATTEMPTS' in 'field list']
FILE: C:\Program Files\Bitrix Environment\www\bitrix\modules\main\classes\general\user.php
LINE: 435
MySQL Query Error: SELECT U.ID, U.ACTIVE, U.PASSWORD, U.LOGIN_ATTEMPTS FROM b_user U WHERE U.LOGIN='XXX' AND (EXTERNAL_AUTH_ID IS NULL OR EXTERNAL_AUTH_ID='') [Unknown column 'U.LOGIN_ATTEMPTS' in 'field list']