Fatal error: Uncaught Error: Class 'Symfony\Component\Debug\Exception\FatalErrorException' not found in /home1/heyerarc/public_html/updates/concrete5-8.5.5_remote_updater/concrete/vendor/symfony/debug/Exception/UndefinedMethodException.php:19 Stack trace: #0 {main} thrown in /home1/heyerarc/public_html/updates/concrete5-8.5.5_remote_updater/concrete/vendor/symfony/debug/Exception/UndefinedMethodException.php on line 19