安裝問題

http://loyu.tw/drupal/
不知道是檔案權限的修改還是那個環節有問題？
Warning: ini_set() [function.ini-set]: A session is active. You cannot change the session module's ini settings at this time in drupal_environment_initialize() (line 707 of /home/loyutw/public_html/drupal/includes/bootstrap.inc).