Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/mydemotec/public_html/frun/vendor/sendgrid/php-http-client/test/unit/LicenceYearTest.php:7 Stack trace: #0 {main} thrown in /home/mydemotec/public_html/frun/vendor/sendgrid/php-http-client/test/unit/LicenceYearTest.php on line 7