Warning: require_once(vendor/PHPMailer/PHPMailer.php): Failed to open stream: No such file or directory in /www/wwwroot/jifengxin.com/send.php on line 3

Fatal error: Uncaught Error: Failed opening required 'vendor/PHPMailer/PHPMailer.php' (include_path='.:') in /www/wwwroot/jifengxin.com/send.php:3 Stack trace: #0 {main} thrown in /www/wwwroot/jifengxin.com/send.php on line 3