Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /mnt/volume_lon1_01/backend/adminseppi/vendor/symfony/translation/Test/ProviderTestCase.php:30 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/adminseppi/vendor/symfony/translation/Test/ProviderTestCase.php on line 30