Fatal error: Uncaught Error: Class "Sabberworm\CSS\CSSList\CSSBlockList" not found in /home/slsiluser/public_html/service-portal/vendor/sabberworm/php-css-parser/src/CSSList/Document.php:17 Stack trace: #0 {main} thrown in /home/slsiluser/public_html/service-portal/vendor/sabberworm/php-css-parser/src/CSSList/Document.php on line 17