Error message

• Warning: Cannot modify header information - headers already sent by (output started at /var/www/u0026741/data/www/st-reforma.ru/index.php:2) in drupal_send_headers() (line 1236 of /var/www/u0026741/data/www/st-reforma.ru/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /var/www/u0026741/data/www/st-reforma.ru/index.php:2) in drupal_send_headers() (line 1236 of /var/www/u0026741/data/www/st-reforma.ru/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /var/www/u0026741/data/www/st-reforma.ru/index.php:2) in drupal_send_headers() (line 1236 of /var/www/u0026741/data/www/st-reforma.ru/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /var/www/u0026741/data/www/st-reforma.ru/index.php:2) in drupal_send_headers() (line 1236 of /var/www/u0026741/data/www/st-reforma.ru/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /var/www/u0026741/data/www/st-reforma.ru/index.php:2) in drupal_send_headers() (line 1236 of /var/www/u0026741/data/www/st-reforma.ru/includes/bootstrap.inc).