Fatal error: Uncaught Error: Class "PHPMailer\Test\TestCase" not found in /var/www/html/mun/mailer/phpmailer/test/PHPMailer/DSNConfiguratorTest.php:27 Stack trace: #0 {main} thrown in /var/www/html/mun/mailer/phpmailer/test/PHPMailer/DSNConfiguratorTest.php on line 27