Сообщение об ошибке

• Warning: Cannot modify header information - headers already sent by (output started at /home/u175216/real-apru/www/index.php:3) in drupal_send_headers() (line 1237 of /home/u175216/real-apru/www/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/u175216/real-apru/www/index.php:3) in drupal_send_headers() (line 1237 of /home/u175216/real-apru/www/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/u175216/real-apru/www/index.php:3) in drupal_send_headers() (line 1237 of /home/u175216/real-apru/www/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/u175216/real-apru/www/index.php:3) in drupal_send_headers() (line 1237 of /home/u175216/real-apru/www/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/u175216/real-apru/www/index.php:3) в функции drupal_send_headers() (строка 1237 в файле /home/u175216/real-apru/www/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/u175216/real-apru/www/index.php:3) в функции drupal_send_headers() (строка 1237 в файле /home/u175216/real-apru/www/includes/bootstrap.inc).