Fatal error: Uncaught Error: Class 'OxidEsales\TestingLibrary\AcceptanceTestCase' not found in /www/shop/vendor/oxid-esales/oxideshop-ce/tests/Acceptance/AcceptanceTestCase.php:13 Stack trace: #0 {main} thrown in /www/shop/vendor/oxid-esales/oxideshop-ce/tests/Acceptance/AcceptanceTestCase.php on line 13