Сообщение об ошибке

• Deprecated function: session_set_save_handler(): Providing individual callbacks instead of an object implementing SessionHandlerInterface is deprecated in drupal_session_initialize() (line 245 of /var/www/clients/client44/web76/web/includes/session.inc).
• Deprecated function: mb_strtolower(): Passing null to parameter #1 ($string) of type string is deprecated в функции drupal_strtolower() (строка 532 в файле /var/www/clients/client44/web76/web/includes/unicode.inc).