Fatal error: Uncaught Error: Class "Braintree\Http" not found in /var/www/develop/www/php/vendor/braintree/braintree_php/lib/Braintree/GraphQL.php:10 Stack trace: #0 {main} thrown in /var/www/develop/www/php/vendor/braintree/braintree_php/lib/Braintree/GraphQL.php on line 10