Сообщение об ошибке

Warning: Cannot modify header information - headers already sent by (output started at /var/www/enirisg/public_html/index.php:2) in drupal_send_headers() (line 1555 of /var/www/enirisg/public_html/includes/bootstrap.inc).
Warning: Cannot modify header information - headers already sent by (output started at /var/www/enirisg/public_html/index.php:2) in drupal_send_headers() (line 1555 of /var/www/enirisg/public_html/includes/bootstrap.inc).
Warning: Cannot modify header information - headers already sent by (output started at /var/www/enirisg/public_html/index.php:2) in drupal_send_headers() (line 1555 of /var/www/enirisg/public_html/includes/bootstrap.inc).
Warning: Cannot modify header information - headers already sent by (output started at /var/www/enirisg/public_html/index.php:2) в функции drupal_send_headers() (строка 1555 в файле /var/www/enirisg/public_html/includes/bootstrap.inc).
Warning: Cannot modify header information - headers already sent by (output started at /var/www/enirisg/public_html/index.php:2) в функции drupal_send_headers() (строка 1555 в файле /var/www/enirisg/public_html/includes/bootstrap.inc).
Warning: Cannot modify header information - headers already sent by (output started at /var/www/enirisg/public_html/index.php:2) в функции drupal_send_headers() (строка 1555 в файле /var/www/enirisg/public_html/includes/bootstrap.inc).
Warning: Cannot modify header information - headers already sent by (output started at /var/www/enirisg/public_html/index.php:2) в функции drupal_send_headers() (строка 1555 в файле /var/www/enirisg/public_html/includes/bootstrap.inc).
Warning: Cannot modify header information - headers already sent by (output started at /var/www/enirisg/public_html/index.php:2) в функции drupal_send_headers() (строка 1555 в файле /var/www/enirisg/public_html/includes/bootstrap.inc).