Catchable fatal error: Argument 1 passed to BookingsModelPaymentPay::doExpressCheckout() must be an instance of CD\Component\Bookings\Model\Object\Payment, null given, called in /home/exonera/public_html/components/com_bookings/controller/payment/pay.php on line 14 and defined in /home/exonera/public_html/components/com_bookings/model/payment/pay.php on line 11