Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/bariatric/public_html/api/vendor/facebook/php-business-sdk/test/FacebookAdsTest/Object/ServerSide/ServerSideUtilTest.php:30 Stack trace: #0 {main} thrown in /home/bariatric/public_html/api/vendor/facebook/php-business-sdk/test/FacebookAdsTest/Object/ServerSide/ServerSideUtilTest.php on line 30