Fatal error: Uncaught Error: Interface "Sabberworm\CSS\CSSList\CSSListItem" not found in /home/defenders/public_html/0255_projects/school_sys_v2/backend/vendor/sabberworm/php-css-parser/src/Property/AtRule.php:13 Stack trace: #0 {main} thrown in /home/defenders/public_html/0255_projects/school_sys_v2/backend/vendor/sabberworm/php-css-parser/src/Property/AtRule.php on line 13