Fatal error: Uncaught Error: Class "TYPO3\CMS\Extbase\Configuration\ConfigurationManager" not found in /var/www/html/cwtypo3/vendor/web-vision/wv_t3unity/Classes/Utility/Configuration.php:11 Stack trace: #0 {main} thrown in /var/www/html/cwtypo3/vendor/web-vision/wv_t3unity/Classes/Utility/Configuration.php on line 11