Error message

• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in drupal_environment_initialize() (line 699 of /home/ntorokogo/public_html/includes/bootstrap.inc).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in drupal_environment_initialize() (line 700 of /home/ntorokogo/public_html/includes/bootstrap.inc).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in drupal_environment_initialize() (line 701 of /home/ntorokogo/public_html/includes/bootstrap.inc).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in drupal_environment_initialize() (line 704 of /home/ntorokogo/public_html/includes/bootstrap.inc).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in drupal_environment_initialize() (line 706 of /home/ntorokogo/public_html/includes/bootstrap.inc).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in include_once() (line 334 of /home/ntorokogo/public_html/sites/default/settings.php).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in include_once() (line 335 of /home/ntorokogo/public_html/sites/default/settings.php).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in include_once() (line 343 of /home/ntorokogo/public_html/sites/default/settings.php).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in include_once() (line 350 of /home/ntorokogo/public_html/sites/default/settings.php).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in drupal_settings_initialize() (line 826 of /home/ntorokogo/public_html/includes/bootstrap.inc).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in drupal_settings_initialize() (line 835 of /home/ntorokogo/public_html/includes/bootstrap.inc).
• Warning: session_name(): Session name cannot be changed after headers have already been sent in drupal_settings_initialize() (line 838 of /home/ntorokogo/public_html/includes/bootstrap.inc).