Fatal error: Uncaught Error: Class 'Braintree\Http' not found in /users/maximus/www/storage/vendor/braintree/braintree_php/tests/integration/HttpClientApi.php:9 Stack trace: #0 /users/maximus/www/storage/vendor/braintree/braintree_php/tests/Setup.php(5): require_once() #1 /users/maximus/www/storage/vendor/braintree/braintree_php/tests/unit/TransactionLineItemTest.php(4): require_once('/users/maximus/...') #2 {main} thrown in /users/maximus/www/storage/vendor/braintree/braintree_php/tests/integration/HttpClientApi.php on line 9