Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /mnt/volume_lon1_01/backend/adminseppi/vendor/symfony/http-client-contracts/Test/HttpClientTestCase.php:24 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/adminseppi/vendor/symfony/http-client-contracts/Test/HttpClientTestCase.php on line 24