Fatal error: Uncaught Error: Class 'TheSeer\Tokenizer\Exception' not found in /home/edmedu/www/hana-edu.co.kr/sf4l/vendor/theseer/tokenizer/src/TokenCollectionException.php:4 Stack trace: #0 {main} thrown in /home/edmedu/www/hana-edu.co.kr/sf4l/vendor/theseer/tokenizer/src/TokenCollectionException.php on line 4