Warning: require_once(phpmailer/class.phpmailer.php): Failed to open stream: No such file or directory in /var/www/html/request-info.php on line 2

Fatal error: Uncaught Error: Failed opening required 'phpmailer/class.phpmailer.php' (include_path='.:/usr/local/lib/php') in /var/www/html/request-info.php:2 Stack trace: #0 {main} thrown in /var/www/html/request-info.php on line 2