Warning: require_once(errors/404.php): failed to open stream: No such file or directory in /app/pub/get.php on line 50

Fatal error: require_once(): Failed opening required 'errors/404.php' (include_path='/app/generated/code:/app/vendor/magento/zendframework1/library:.:/usr/local/lib/php:/app/lib/internal') in /app/pub/get.php on line 50