Fatal error: Uncaught Error: Class 'PharIo\Manifest\ManifestElement' not found in /opt/lampp/htdocs/kuesioner/vendor/phar-io/manifest/src/xml/ExtElement.php:13 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/kuesioner/vendor/phar-io/manifest/src/xml/ExtElement.php on line 13