Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /var/www/html/includes/dompdf/vendor/sabberworm/php-css-parser/tests/Sabberworm/CSS/RuleSet/DeclarationBlockTest.php:9 Stack trace: #0 {main} thrown in /var/www/html/includes/dompdf/vendor/sabberworm/php-css-parser/tests/Sabberworm/CSS/RuleSet/DeclarationBlockTest.php on line 9