Fatal error: Uncaught Error: Class 'PhpParser\NodeVisitorAbstract' not found in /var/www/typo3/vendor/nikic/php-parser/lib/PhpParser/NodeVisitor/CloningVisitor.php:13 Stack trace: #0 {main} thrown in /var/www/typo3/vendor/nikic/php-parser/lib/PhpParser/NodeVisitor/CloningVisitor.php on line 13