Fatal error: Uncaught Error: Class 'SebastianBergmann\Comparator\Comparator' not found in /home/edmedu/www/edmeducation.co.kr/tw-dev/vendor/myclabs/php-enum/src/PHPUnit/Comparator.php:15 Stack trace: #0 {main} thrown in /home/edmedu/www/edmeducation.co.kr/tw-dev/vendor/myclabs/php-enum/src/PHPUnit/Comparator.php on line 15