We have upgraded osTicket used on this site to version 1.10. Tickets integration with Joomla doesn't work any more. Most links to ticket creation should have now been updated in order to bypass Joomla integration and open native osTicket new ticket form. Anyways, you can open a new ticket directly http://tickets.smartcalc.org/open.php if some of ticket links are still broken.
This site uses osTicket 1.10 for customers support. We had to upgrade osTicket to 1.10 to be PHP7 compatible. osTicky for Joomla doesn't support integration with osTicket 1.10.x and we cannot demonstrate osTicky for Joomla on this site.