Error message

• Warning: Cannot modify header information - headers already sent by (output started at /home/usbuilde/public_html/canadianbusinessexecutive/index.php:1) in _drupal_bootstrap_page_cache() (line 2428 of /home/usbuilde/public_html/canadianbusinessexecutive/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/usbuilde/public_html/canadianbusinessexecutive/index.php:1) in drupal_send_headers() (line 1237 of /home/usbuilde/public_html/canadianbusinessexecutive/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/usbuilde/public_html/canadianbusinessexecutive/index.php:1) in drupal_send_headers() (line 1237 of /home/usbuilde/public_html/canadianbusinessexecutive/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/usbuilde/public_html/canadianbusinessexecutive/index.php:1) in drupal_send_headers() (line 1237 of /home/usbuilde/public_html/canadianbusinessexecutive/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/usbuilde/public_html/canadianbusinessexecutive/index.php:1) in drupal_send_headers() (line 1237 of /home/usbuilde/public_html/canadianbusinessexecutive/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/usbuilde/public_html/canadianbusinessexecutive/index.php:1) in drupal_send_headers() (line 1237 of /home/usbuilde/public_html/canadianbusinessexecutive/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/usbuilde/public_html/canadianbusinessexecutive/index.php:1) in drupal_send_headers() (line 1237 of /home/usbuilde/public_html/canadianbusinessexecutive/includes/bootstrap.inc).