Fatal error: Uncaught Error: Class 'League\Glide\Manipulators\BaseManipulator' not found in /home/edmedu/www/hana-edu.co.kr/sf4l/vendor/league/glide/src/Manipulators/Background.php:11 Stack trace: #0 {main} thrown in /home/edmedu/www/hana-edu.co.kr/sf4l/vendor/league/glide/src/Manipulators/Background.php on line 11