Warning: require_once(vendor/autoload.php): Failed to open stream: No such file or directory in /home/expectmo/www/PHPMailer/test/bootstrap.php on line 2

Fatal error: Uncaught Error: Failed opening required 'vendor/autoload.php' (include_path='.:/usr/local/php8.2/lib/php') in /home/expectmo/www/PHPMailer/test/bootstrap.php:2 Stack trace: #0 {main} thrown in /home/expectmo/www/PHPMailer/test/bootstrap.php on line 2