Fatal error: Uncaught Error: Class 'Symfony\Polyfill\Intl\Icu\DateFormat\Transformer' not found in /var/www/typo3/vendor/symfony/polyfill-intl-icu/DateFormat/MonthTransformer.php:21 Stack trace: #0 {main} thrown in /var/www/typo3/vendor/symfony/polyfill-intl-icu/DateFormat/MonthTransformer.php on line 21