Warning: require(/var/www/html/typo3/sysext/core/Configuration/DefaultConfiguration.php): failed to open stream: No such file or directory in /var/www/html/vendor/typo3/cms-core/Classes/Configuration/ConfigurationManager.php on line 92

Fatal error: require(): Failed opening required '/var/www/html/typo3/sysext/core/Configuration/DefaultConfiguration.php' (include_path='.:/usr/local/lib/php') in /var/www/html/vendor/typo3/cms-core/Classes/Configuration/ConfigurationManager.php on line 92