I just installed a brand new appliance 8.0.2 and it is working properly for a small mail domain.
However I have an issue regarding monitoring.
When I go to Message count I have "no data available".
If I enter Server Statistics, the only graph I can get is DisK and if I enquiry for Message Count or Volume I have the following error:

Message: system failure: java.lang.ArrayIndexOutOfBoundsException: 10 Error code: service.FAILURE Method: [unknown] Details:soap:Receiver

I tried everything suggested in the forum but the error is still there.

Any help, please?