[12-Feb-2020 03:50:17 US/Eastern] PHP Fatal error:  Uncaught PHPMailer\PHPMailer\Exception: Invalid address:  (to):  in /home/graytraining/public_html/includes/courses/libs/PHPMailer/src/PHPMailer.php:1004
Stack trace:
#0 /home/graytraining/public_html/includes/courses/libs/PHPMailer/src/PHPMailer.php(934): PHPMailer\PHPMailer\PHPMailer->addOrEnqueueAnAddress('to', '', '')
#1 /home/graytraining/public_html/includes/courses/seminar-registration/submit.php(103): PHPMailer\PHPMailer\PHPMailer->addAddress('')
#2 {main}
  thrown in /home/graytraining/public_html/includes/courses/libs/PHPMailer/src/PHPMailer.php on line 1004
[12-Feb-2020 03:50:17 US/Eastern] PHP Fatal error:  Uncaught PHPMailer\PHPMailer\Exception: Invalid address:  (to):  in /home/graytraining/public_html/includes/courses/libs/PHPMailer/src/PHPMailer.php:1004
Stack trace:
#0 /home/graytraining/public_html/includes/courses/libs/PHPMailer/src/PHPMailer.php(934): PHPMailer\PHPMailer\PHPMailer->addOrEnqueueAnAddress('to', '', '')
#1 /home/graytraining/public_html/includes/courses/seminar-registration/submit.php(103): PHPMailer\PHPMailer\PHPMailer->addAddress('')
#2 {main}
  thrown in /home/graytraining/public_html/includes/courses/libs/PHPMailer/src/PHPMailer.php on line 1004
