Fatal error: Uncaught Error: Class "Braintree\Exception" not found in /home/bartoszduk/public_html/gawex/app/libraries/vendor/braintree/braintree_php/lib/Braintree/Exception/InvalidChallenge.php:6 Stack trace: #0 {main} thrown in /home/bartoszduk/public_html/gawex/app/libraries/vendor/braintree/braintree_php/lib/Braintree/Exception/InvalidChallenge.php on line 6