Fatal error: Uncaught Error: Class 'Braintree\CustomerGateway' not found in /opt/bitnami/apache/htdocs/taxi_app/WebServices/braintree/lib/Braintree/TransparentRedirectGateway.php:48 Stack trace: #0 /opt/bitnami/apache/htdocs/taxi_app/WebServices/braintree/lib/Braintree/TransparentRedirectGateway.php(289): Braintree\TransparentRedirectGateway::init() #1 {main} thrown in /opt/bitnami/apache/htdocs/taxi_app/WebServices/braintree/lib/Braintree/TransparentRedirectGateway.php on line 48