Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/trialog/webhooks/vendor/teknoo/sellsy-client/tests/Sellsy/Collection/AbstractCollectionTest.php:43 Stack trace: #0 {main} thrown in /home/trialog/webhooks/vendor/teknoo/sellsy-client/tests/Sellsy/Collection/AbstractCollectionTest.php on line 43