When logged in as admin checkout fails and doesn't output any errors, works fine when logged out or logged in as a customer.
When putting WordPress into debug mode i get the following PHP Notices:
Notice: Undefined variable: cards in /wp-content/plugins/sagepay-direct-for-woocommerce-payment-gateway/ds-sagepay-direct.php on line 155
Notice: Undefined property: DS_Sagepay_Direct::$validated in /wp-content/plugins/sagepay-direct-for-woocommerce-payment-gateway/ds-sagepay-direct.php on line 476
Please help!