i've got a "systemextension" error notification on the dashboard. On the detail page is the
echotest unregistered. Why is the echotest unregistered an how can I fix it?
Can you go ahead and restart your "3CX PhoneSystem 01 IVR Server" from the Dashboard >> Services, select the service and only and click restart. Let me know if that works.
I'm not sure how this would happen to be honest. I'd now try to restart the server entirely. If that doesn't work, and if it's a slow and small system, you may want to consider backing up and reinstalling.