Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/alkhabee/public_html/platform.alkhabeer.org/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php:21 Stack trace: #0 {main} thrown in /home/alkhabee/public_html/platform.alkhabeer.org/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php on line 21