Что за ошибка после установки Alto cms?

Решил посмотреть Altocms на локальном сервере AMPPS, но после установки этой CMS вылезла ошибка: E_DEPRECATED [8192] The each() function is deprecated. This message will be suppressed on further calls
See details in error.logSQL Error: Table 'alto.alt_session' doesn't exist at E:\Server\www\alto\common\classes\modules\user\mapper\User.mapper.class.php line 355 ---Array ( [code] => 1146 [message] => Table 'alto.alt_session' doesn't exist [query] => SELECT s.* FROM alt_session AS s INNER JOIN alt_user AS u ON s.user_id=u.user_id WHERE s.user_id IN('1') AND s.session_key=u.user_last_session AND 1=1 LIMIT 1 [context] => E:\Server\www\alto\common\classes\modules\user\mapper\User.mapper.class.php line 355 )