Error message

• Warning: Cannot modify header information - headers already sent by (output started at /home1/acer131313/public_html/sites/all/themes/theme903/template.php:342) in drupal_send_headers() (line 1228 of /home1/acer131313/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/acer131313/public_html/sites/all/themes/theme903/template.php:342) in drupal_send_headers() (line 1228 of /home1/acer131313/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/acer131313/public_html/sites/all/themes/theme903/template.php:342) in drupal_send_headers() (line 1228 of /home1/acer131313/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/acer131313/public_html/sites/all/themes/theme903/template.php:342) in drupal_send_headers() (line 1228 of /home1/acer131313/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/acer131313/public_html/sites/all/themes/theme903/template.php:342) in drupal_send_headers() (line 1228 of /home1/acer131313/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/acer131313/public_html/sites/all/themes/theme903/template.php:342) in drupal_send_headers() (line 1228 of /home1/acer131313/public_html/includes/bootstrap.inc).
• Deprecated function: implode(): Passing glue string after array is deprecated. Swap the parameters in drupal_get_feeds() (line 394 of /home1/acer131313/public_html/includes/common.inc).
• Deprecated function: The each() function is deprecated. This message will be suppressed on further calls in menu_set_active_trail() (line 2394 of /home1/acer131313/public_html/includes/menu.inc).