If no logs have been generated, that can only mean cc-control is not crashing, and there's something else going on. Did you check that port 2198 is not blocked by a firewall and also your cron logs (/var/log/cron or /var/log/messages for reasons why the "/etc/init.d/centovacast check" cron job is not running correctly?
If you did check all that and found nothing wrong, then you should open a ticket with our support department. Please note that our developers will most certainly need root access to your server, in order to be able to diagnose this.