Can you do the following in site now?
Edit wp-config.php and upload to ur site.
1. find “WP_DEBUG” if found then set it to true. Else add line
define(‘WP_DEBUG’, true);
2. in the top of your “wp-config.php” file add
ini_set(‘display_errors’, ‘1’); error_reporting(E_ALL); var_dump(‘…’);
3. Save the file and let us know back, this will show any php errors, warnings, help us to debug