Fatal error: Uncaught Error: Class 'Composer\Command\RequireCommand' not found in /home/esecureh/public_html/magdemo/vendor/magento/composer-root-update-plugin/ComposerReimplementation/ExtendableRequireCommand.php:28 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/composer-root-update-plugin/ComposerReimplementation/ExtendableRequireCommand.php on line 28