Error message

• Warning: Cannot modify header information - headers already sent by (output started at /home/weshare/public_html/index.php(11) : assert code(1) : eval()'d code:16) in _drupal_bootstrap_page_cache() (line 2688 of /home/weshare/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/weshare/public_html/index.php(11) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1490 of /home/weshare/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/weshare/public_html/index.php(11) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1490 of /home/weshare/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/weshare/public_html/index.php(11) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1490 of /home/weshare/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/weshare/public_html/index.php(11) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1490 of /home/weshare/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/weshare/public_html/index.php(11) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1490 of /home/weshare/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/weshare/public_html/index.php(11) : assert code(1) : eval()'d code:16) in drupal_send_headers() (line 1490 of /home/weshare/public_html/includes/bootstrap.inc).