Blank Download Page [PHP] - php

Question

Recently moved a site over to a new server and now for some reason the download page is no longer downloading the purchased files.
When the download page is reached it is simply blank. I have changed the filename directory to use home/mastetu8 instead of home/mastvoic which was the last directory. Any idea on why the page is blank when trying to download?
Here is the download_process.php file currently running this piece:
<?php ob_start(); ?>
<?php require_once('../Connections/admin.php'); ?>
<?php
$orders_id = $_GET['orderid'];
$id = $_GET['id'];
mysql_select_db($database_admin, $admin);
$query_rsOrdersDetail = "SELECT * FROM orders_detail LEFT JOIN media ON orders_detail.product_id = media.sortorder WHERE orders_detail.orders_id = '$orders_id' AND orders_detail.id = '$id'";
$rsOrdersDetail = mysql_query($query_rsOrdersDetail, $admin) or die(mysql_error());
$row_rsOrdersDetail = mysql_fetch_assoc($rsOrdersDetail);
$totalRows_rsOrdersDetail = mysql_num_rows($rsOrdersDetail);
// CHECK DOWNLOAD COUNT
if ($row_rsOrdersDetail['downloadcount'] <= 3) {
$filename_hires = '/home/mastetu8/public_html'.$row_rsOrdersDetail['filename_hires'];
if (file_exists($filename_hires)) {
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename='.basename($filename_hires));
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($filename_hires));
ob_clean();
flush();
readfile($filename_hires);
// UPDATE DOWNLOAD COUNTER
$downloadcount_new = $row_rsOrdersDetail['downloadcount'] + 1;
mysql_select_db($database_admin, $admin);
mysql_query("UPDATE orders_detail SET downloadcount='$downloadcount_new' WHERE id = '$id' AND orders_id = '$orders_id'", $admin) or die(mysql_error());
}
}
?>