Fatal error: Uncaught Error: Class 'Braintree_Instance' not found in /var/www/html/www.ecsprepaidportal.com/braintree/lib/Braintree/Transaction/SubscriptionDetails.php:20 Stack trace: #0 {main} thrown in /var/www/html/www.ecsprepaidportal.com/braintree/lib/Braintree/Transaction/SubscriptionDetails.php on line 20