Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/app/htdocs/message_gateway_20231016/vendor/vlucas/phpdotenv/tests/Dotenv/DotenvTest.php:5 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway_20231016/vendor/vlucas/phpdotenv/tests/Dotenv/DotenvTest.php on line 5