We run CubeCart with Express Checkout and Direct Payment, when a user goes to pay by PayPal, the website is producing an error: Fatal error: Call to undefined method SOAP_Fault::getAck() in /var/www/vhosts/example.com/httpdocs/modules/gateway/DirectPayment/form.inc.php on line 167 Fatal error: Call to undefined method SOAP_Fault::getAck() in /var/www/vhosts/example.com/httpdocs/modules/gateway/ExpressCheckout/transfer.inc.php on line 104 No changes have been made to the website so is