I have made the requested change so that lines 571-579 of AUP.php now reads as follows:
function onAfterOrderUpdate(&$order,&$send_email){
$method=$this->getMethod();
if(!isset($order->order_status)) return true;
$fullOrder=&hikashop_get('class.order');
$fullOrder=$fullOrder->loadFullOrder($order->order_id, false, false);
if(empty($order->customer)){
$userClass = hikashop_get('class.user');
$fullOrder->customer = $userClass->get($fullOrder->order_user_id);
$config=&hikashop_config();
However, when placing an order an clicking on "Checkout" I receve the following message:
Parse error: syntax error, unexpected $end, expecting T_FUNCTION in /home1/plenitud/public_html/site/plugins/hikashoppayment/alphauserpoints.php on line 625
Have reset/FTP AUP.php to org file, so as to use shopping cart.