Fatal error: Uncaught Error: Class 'GoCardlessPro\Integration\IntegrationTestBase' not found in /home/app/htdocs/lidia/vendor/gocardless/gocardless-pro/tests/Integration/PaymentsIntegrationTest.php:9 Stack trace: #0 {main} thrown in /home/app/htdocs/lidia/vendor/gocardless/gocardless-pro/tests/Integration/PaymentsIntegrationTest.php on line 9