Fatal error: Uncaught PHPMailer\PHPMailer\Exception: Could not instantiate mail function. in /var/phpMailer/vendor/phpmailer/phpmailer/src/PHPMailer.php:1966 Stack trace: #0 /var/phpMailer/vendor/phpmailer/phpmailer/src/PHPMailer.php(1680): PHPMailer\PHPMailer\PHPMailer->mailSend() #1 /var/phpMailer/vendor/phpmailer/phpmailer/src/PHPMailer.php(1516): PHPMailer\PHPMailer\PHPMailer->postSend() #2 /var/www/html/sendMail.php(48): PHPMailer\PHPMailer\PHPMailer->send() #3 {main} thrown in /var/phpMailer/vendor/phpmailer/phpmailer/src/PHPMailer.php on line 1966