Blockchain suddenly stopped working - php

Question

[Bitcoin stopped generating bitcoin address, It used to work 2 days before, Suddenly it stopped working. I think blockchain had made changes. Please help. I saw blockchain was upgrading. so They might have made some changes.
<?php
/**
*
* # EvolutionScript FULL DECODED & NULLED
*
* # Version : 5.1
* # Author : MTIMER
* # Release on : 2014-09-01
* # Website : http://www.mtimer.net
*
**/
if (!defined("EvolutionScript")) {
exit("Hacking attempt...");
}
if ($_SESSION['logged'] != "yes") {
header("location: ./");
exit();
}
$blockchain_root = "https://blockchain.info/";
if (is_numeric($input->g['order'])) {
$orderid = $db->real_escape_string($input->gc['order']);
$chk = $db->fetchOne("SELECT COUNT(id) AS NUM FROM blockchain_requests WHERE id=" . $orderid . "
AND user_id=" . $user_info['id']);
if ($chk == 0) {
header("location: ./?view=account");
exit();
}
else {
$bc_address = $db->fetchOne("SELECT account FROM gateways WHERE id=8");
$order = $db->fetchRow("SELECT * FROM blockchain_requests WHERE id=" . $orderid);
$timeleft = TIMENOW - 10800;
if ($order['bc_address'] == "" || $order['date'] < $timeleft) {
$callback_url = $settings['site_url'] . "modules/gateways/bcstatus.php?order=" .
$order['id'] . "&secret=" . $order['code'] . "&membership=" . $order['membership'];
$response = json_decode(file_get_contents($blockchain_root . "api/receive?
method=create&callback=" . urlencode($callback_url) . "&address=" . $bc_address));
$account_address = $response->input_address;
$db->query("UPDATE blockchain_requests SET bc_address='" . $account_address . "',
date=" . TIMENOW . (" WHERE id=" . $order['id']));
}
else {
$account_address = $order['bc_address'];
}
require SMARTYLOADER;
$smarty->assign("amount", $order['btc_amount']);
$smarty->assign("account", $account_address);
$smarty->assign("blockchain_root", $blockchain_root);
$smarty->assign("file_name", "blockchain.tpl");
$smarty->display("account.tpl");
exit();
}
}
if (is_numeric($input->p['amount']) && isset($input->p['type'])) {
$amount = number_format($input->pc['amount'], 2, ".", "");
if ($input->p['type'] == "deposit") {
$minimum_deposit = $db->fetchOne("SELECT min_deposit FROM gateways WHERE id=8");
if ($amount < $minimum_deposit) {
exit("Error");
}
}
$upgrade_id = (!is_numeric($input->p['membership']) ? 0 : $input->p['membership']);
$btc_amount = file_get_contents($blockchain_root . "tobtc?currency=USD&value=" . $amount);
$data = array("user_id" => $user_info['id'], "amount" => $amount, "btc_amount" => $btc_amount, "type"
=> $input->pc['type'], "membership" => $upgrade_id, "code" => substr(md5("block" . TIMENOW . "bc"), 4, 15),
"date" => TIMENOW);
$db->insert("blockchain_requests", $data);
$orderid = $db->lastInsertId();
header("location: ./?view=blockchain&order=" . $orderid);
exit();
return 1;
}
header("location: ./?view=account");
exit();
?>