Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/elcmrenh/public_html/wp-content/plugins/clean-and-simple-contact-form-by-meg-nicholas/vendor/composer/installers/tests/Composer/Installers/Test/TestCase.php:21 Stack trace: #0 {main} thrown in /home/elcmrenh/public_html/wp-content/plugins/clean-and-simple-contact-form-by-meg-nicholas/vendor/composer/installers/tests/Composer/Installers/Test/TestCase.php on line 21