Fatal error: Uncaught Error: Class 'Braintree\Http' not found in /opt/bitnami/apache/htdocs/taxi_app/WebServices/braintree/tests/integration/HttpClientApi.php:9 Stack trace: #0 /opt/bitnami/apache/htdocs/taxi_app/WebServices/braintree/tests/Setup.php(5): require_once() #1 /opt/bitnami/apache/htdocs/taxi_app/WebServices/braintree/tests/unit/Result/SuccessfulTest.php(4): require_once('/opt/bitnami/ap...') #2 {main} thrown in /opt/bitnami/apache/htdocs/taxi_app/WebServices/braintree/tests/integration/HttpClientApi.php on line 9