Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/app/htdocs/message_gateway_20231016/vendor/webmozart/assert/tests/AssertTest.php:28 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway_20231016/vendor/webmozart/assert/tests/AssertTest.php on line 28