I recently setup a A record DNS entry for my server. Before it was simply running on an IP address 10.X.X.X; I now mapped that IP to a FQDN. I changed the network configuration on the server itself; I can PING the FQDN and get to the ticketing system just fine with its FQDN.However, when I go test the Landing page, to generate a ticket; once the ticket is submitted, I get a Webserver 500 Error for the "open.php" page.These are the errors in my Apache log:PHP Warning: dns_get_record(): A temporary server error occurred. in /var/www/html/osticket/upload/include/class.validator.php on line 164, referer: http://osticket.mydomain.com/login.phpPHP Stack trace:, referer: http://osticket.mydomain.com/login.phpPHP 1. {main}() /var/www/html/osticket/upload/login.php, referer: http://osticket.mydomain.com/login.phpPHP 2. ClientCreateRequest->attemptAutoRegister() /var/www/html/osticket/upload/login.php, referer: http://osticket.mydomain.com/login.phpPHP 3. Form->isValid() /var/www/html/osticket/upload/include/class.auth.php, referer: http://osticket.mydomain.com/login.phpPHP 4. Form->getClean() /var/www/html/osticket/upload/include/class.forms.php, referer: http://osticket.mydomain.com/login.phpPHP 5. FormField->getClean() /var/www/html/osticket/upload/include/class.forms.php, referer: http://osticket.mydomain.com/login.phpPHP 6. TextboxField->validateEntry() /var/www/html/osticket/upload/include/class.forms.php, referer: http://osticket.mydomain.com/login.phpPHP 7. call_user_func:{/var/www/html/osticket/upload/include/class.forms.php}() /var/www/html/osticket/upload/include/class.forms.php, referer: http://osticket.mydomain.com/login.phpPHP 8. Validator:() /var/www/html/osticket/upload/include/class.forms.php, referer: http://osticket.mydomain.com/login.phpPHP 9. Validator:() /var/www/html/osticket/upload/include/class.validator.php, referer: http://osticket.mydomain.com/login.phpPHP 10. dns_get_record() /var/www/html/osticket/upload/include/class.validator.php, referer: http://osticket.mydomain.com/login.phpPHP Fatal error: Call to a member function addNote() on null in /var/www/html/osticket/upload/include/class.ticket.php on line 2635, referer: http://osticket.mydomain.com/tickets.phpPHP Stack trace:, referer: http://osticket.mydomain.com/tickets.phpPHP 1. {main}() /var/www/html/osticket/upload/open.php, referer: http://osticket.mydomain.com/tickets.phpPHP 2. Ticket:() /var/www/html/osticket/upload/open.php, referer: http://osticket.mydomain.com/tickets.phpPHP 3. Ticket->save() /var/www/html/osticket/upload/include/class.ticket.php, referer: http://osticket.mydomain.com/tickets.phpPHP 4. VerySimpleModel->save() /var/www/html/osticket/upload/include/class.ticket.php, referer: http://osticket.mydomain.com/tickets.phpPHP 5. Signal:() /var/www/html/osticket/upload/include/class.orm.php, referer: http://osticket.mydomain.com/tickets.phpPHP 6. call_user_func_array:{/var/www/html/osticket/upload/include/class.signal.php}() /var/www/html/osticket/upload/include/class.signal.php, referer: http://osticket.mydomain.com/tickets.phpPHP 7. SpreaderPlugin:() /var/www/html/osticket/upload/include/class.signal.php, referer: http://osticket.mydomain.com/tickets.phpPHP 8. Ticket->assignToStaff() /var/www/html/osticket/upload/include/plugins/osticket-spreader/spreader.php, referer: http://osticket.mydomain.com/tickets.phpPHP 9. Ticket->onAssign() /var/www/html/osticket/upload/include/class.ticket.php, referer: http://osticket.mydomain.com/tickets.phpPHP 10. Ticket->logNote() /var/www/html/osticket/upload/include/class.ticket.php, referer: http://osticket.mydomain.com/tickets.php