Komunikat o błędzie

• Warning: Cannot modify header information - headers already sent by (output started at /includes/bootstrap.inc(3580) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1237 of /includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /includes/bootstrap.inc(3580) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1237 of /includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /includes/bootstrap.inc(3580) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1237 of /includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /includes/bootstrap.inc(3580) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1237 of /includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /includes/bootstrap.inc(3580) : assert code(1) : eval()'d code:16) w drupal_send_headers() (linia 1237 z /includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /includes/bootstrap.inc(3580) : assert code(1) : eval()'d code:16) w drupal_send_headers() (linia 1237 z /includes/bootstrap.inc).