Fatal error: Uncaught Error: Call to undefined function osTicket\Mail\_S() in /var/www/ostk/osTicket/include/class.mailer.php:635 Stack trace: #0 /var/www/ostk/osTicket/include/class.mailer.php(673): osTicket\Mail\Mailer->send() #1 /var/www/ostk/osTicket/bootstrap.php(342): osTicket\Mail\Mailer::sendmail() #2 /var/www/ostk/osTicket/bootstrap.php(228): Bootstrap::croak() #3 /var/www/ostk/osTicket/main.inc.php(28): Bootstrap::connect() #4 /var/www/ostk/osTicket/client.inc.php(21): require_once('...') #5 /var/www/ostk/osTicket/view.php(17): require_once('...') #6 {main} thrown in /var/www/ostk/osTicket/include/class.mailer.php on line 635