Fatal error: Uncaught Error: Call to undefined function extension_loaded() in /var/www/typo3_src-11.5.32/vendor/symfony/polyfill-mbstring/bootstrap80.php:131 Stack trace: #0 /var/www/typo3_src-11.5.32/vendor/symfony/polyfill-mbstring/bootstrap.php(15): require() #1 /var/www/typo3_src-11.5.32/vendor/composer/autoload_real.php(41): require('...') #2 /var/www/typo3_src-11.5.32/vendor/composer/autoload_real.php(45): {closure}() #3 /var/www/typo3_src-11.5.32/vendor/autoload.php(25): ComposerAutoloaderInitd0f990e1b8f0cf85f2ae1c7caf24ce4f::getLoader() #4 /var/www/typo3_src-11.5.32/index.php(18): require('...') #5 /var/www/typo3_src-11.5.32/index.php(21): {closure}() #6 {main} thrown in /var/www/typo3_src-11.5.32/vendor/symfony/polyfill-mbstring/bootstrap80.php on line 131