Fatal error: Uncaught Error: Call to undefined function osTicket\Mail\_S() in /web/app/include/class.mailer.php:641 Stack trace: #0 /web/app/include/class.mailer.php(679): osTicket\Mail\Mailer->send(Array, 'osTicket Fatal ...', 'Database error ...', Array) #1 /web/app/bootstrap.php(342): osTicket\Mail\Mailer::sendmail('oliver@teqneers...', 'osTicket Fatal ...', 'Database error ...', '"osTicket Alert...') #2 /web/app/bootstrap.php(228): Bootstrap::croak('Database error ...') #3 /web/app/main.inc.php(28): Bootstrap::connect() #4 /web/app/client.inc.php(21): require_once('/web/app/main.i...') #5 /web/app/index.php(16): require('/web/app/client...') #6 {main} thrown in /web/app/include/class.mailer.php on line 641