Fatal error: Uncaught Error: Class "ApiTestCase\JsonApiTestCase" not found in /home/flighto/e-commerce/vendor/sylius/paypal-plugin/tests/Functional/CreatePayPalOrderFromPaymentPageActionTest.php:9 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/sylius/paypal-plugin/tests/Functional/CreatePayPalOrderFromPaymentPageActionTest.php on line 9