This is not something edited through wordpress generally but via FTP. If you need assistance with that matter is suggest contacting your webhost for further details.
I had this same issue, to resolve it open up the /wp-content/themes/lightword/custom_header.php file and remove the spaces in front of the <? at the beginning of the file.
I had this same issue, to resolve it open up the /wp-content/themes/lightword/custom_header.php file and remove the spaces in front of the <? at the beginning of the file.
