Fatal error: Uncaught Error: Class 'Braintree\Base' not found in /home/app/htdocs/lidia/vendor/braintree/braintree_php/lib/Braintree/PaymentMethodNonce.php:20 Stack trace: #0 {main} thrown in /home/app/htdocs/lidia/vendor/braintree/braintree_php/lib/Braintree/PaymentMethodNonce.php on line 20