Online checkin not working

We started to try checking in at 7.30 PM but encountered and error message once we got to the boarding pass stage. I wasted over an hour on the phone to finally be told 'there was a problem'. Is it really so hard to know when a system is not working properly. I can't comprehend why you are told to 'contact the airline' if the call centre can't do anything anyway. It is now the morning of the flight, the error is still there as it is showing checked in but it is not possible to print a boarding pass.

Comments on Facebook are just ignored. 1/10 for service, and I guess it is an airport checkin.

Domestic
Australia-Melbourne - Tullamarine
Australia-Gold Coast