Fatal error: Uncaught Error: Interface 'Sabberworm\CSS\Renderable' not found in /home/kubalos2/public_html/testtestowy/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/CSSList/CSSList.php:15 Stack trace: #0 {main} thrown in /home/kubalos2/public_html/testtestowy/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/CSSList/CSSList.php on line 15