Fatal error: Uncaught Error: Class "TYPO3\CMS\Frontend\Plugin\AbstractPlugin" not found in /var/www/html/cwtypo3/vendor/web-vision/wv_t3unity/Classes/Hooks/ContentPostProc.php:16 Stack trace: #0 {main} thrown in /var/www/html/cwtypo3/vendor/web-vision/wv_t3unity/Classes/Hooks/ContentPostProc.php on line 16