Fatal error: Uncaught Error: Class "Contao\CoreBundle\Tests\TestCase" not found in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/contao/core-bundle/tests/DataContainer/PaletteManipulatorTest.php:21 Stack trace: #0 {main} thrown in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/contao/core-bundle/tests/DataContainer/PaletteManipulatorTest.php on line 21