Fatal error: Uncaught Error: Class 'Braintree\Instance' not found in /home/app/htdocs/ninja/vendor/braintree/braintree_php/lib/Braintree/Transaction/VisaCheckoutCardDetails.php:37 Stack trace: #0 {main} thrown in /home/app/htdocs/ninja/vendor/braintree/braintree_php/lib/Braintree/Transaction/VisaCheckoutCardDetails.php on line 37