How to update CACert Certificates?

My CACert certificates expire in 10 days, so i renewed them on the CACert website and uploadet them in the wildfire admin console.

Jabber clients and webbrowser(admon console) using furthermore the old ones.

If i delete the old ones from the admin console, all clients got SSL/TLS errors.

Restart of wildfire does not work, same problem.

How to mange certificates updates?

No one ever updated his ssl certs in wildfire?

Has anybody a hint for me? Today the old ones expired, but they’'re still used by wildfire.