Fatal error: Uncaught PHPMailer\PHPMailer\Exception: Invalid address:  (From):  in /home/s/stekloff/stekloffvufe.ru/public_html/forms/PHPMailer.php:1175
Stack trace:
#0 /home/s/stekloff/stekloffvufe.ru/public_html/forms/callback.php(28): PHPMailer\PHPMailer\PHPMailer->setFrom('')
#1 {main}
  thrown in /home/s/stekloff/stekloffvufe.ru/public_html/forms/PHPMailer.php on line 1175