Ошибка следующего содержания:

* warning: tempnam() [function.tempnam]: open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/home/u21661/) in /home/u21661/smartdriver.ru/www/includes/file.inc on line 228.
* warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/home/u21661/smartdriver.ru/tmp/phpEfmqzh' to '' in /home/u21661/smartdriver.ru/www/includes/file.inc on line 241.
* warning: set_time_limit() has been disabled for security reasons in /home/u21661/smartdriver.ru/www/includes/locale.inc on line 468.
* The translation import failed, because the file could not be read.
* The translation import of failed.

Что это значит? кто знает?