Fatal error: Uncaught Error: Call to undefined function _S() in /var/www/myapp/include/class.mailer.php:635 Stack trace: #0 /var/www/myapp/include/class.mailer.php(673): osTicket\Mail\Mailer->send(Array, 'osTicket Fatal ...', 'Database error ...', Array) #1 /var/www/myapp/bootstrap.php(342): osTicket\Mail\Mailer::sendmail('kamal@yopmail.c...', 'osTicket Fatal ...', 'Database error ...', '"osTicket Alert...') #2 /var/www/myapp/bootstrap.php(228): Bootstrap::croak('Database error ...') #3 /var/www/myapp/main.inc.php(28): Bootstrap::connect() #4 /var/www/myapp/client.inc.php(21): require_once('/var/www/myapp/...') #5 /var/www/myapp/index.php(16): require('/var/www/myapp/...') #6 {main} thrown in /var/www/myapp/include/class.mailer.php on line 635