Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Exception\InvalidArgumentException" not found in /usr/home/shi561/domains/tc.shi.ip-ddns.com/public_html/vendor/symfony/mailer/Exception/IncompleteDsnException.php:17
Stack trace:
#0 {main}
  thrown in /usr/home/shi561/domains/tc.shi.ip-ddns.com/public_html/vendor/symfony/mailer/Exception/IncompleteDsnException.php on line 17