Fatal error: Uncaught Error: Class "Twig\Extension\AbstractExtension" not found in /home/iotechtniu/ioacademy/vendor/twig/cssinliner-extra/CssInlinerExtension.php:18 Stack trace: #0 {main} thrown in /home/iotechtniu/ioacademy/vendor/twig/cssinliner-extra/CssInlinerExtension.php on line 18