Fatal error: Uncaught Error: Call to undefined function _S() in /var/www/html/include/class.mailer.php:612 Stack trace: #0 /var/www/html/include/class.mailer.php(632): Mailer->send(Array, 'osTicket Fatal ...', 'Unable to conne...', Array) #1 /var/www/html/bootstrap.php(316): Mailer::sendmail('dev@remaco.gr', 'osTicket Fatal ...', 'Unable to conne...', '"osTicket Alert...') #2 /var/www/html/bootstrap.php(201): Bootstrap::croak('Unable to conne...') #3 /var/www/html/main.inc.php(28): Bootstrap::connect() #4 /var/www/html/client.inc.php(21): require_once('/var/www/html/m...') #5 /var/www/html/index.php(16): require('/var/www/html/c...') #6 {main} thrown in /var/www/html/include/class.mailer.php on line 612