Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/app/htdocs/lidia/vendor/gocardless/gocardless-pro/tests/Core/ApiClientTest.php:7 Stack trace: #0 {main} thrown in /home/app/htdocs/lidia/vendor/gocardless/gocardless-pro/tests/Core/ApiClientTest.php on line 7