I have analysed the log files of the bellavista MB104889. Unfortunately, I am not able to determine the root cause of this issue by analysing the log files as I just see the alarms showing-up and disappearing. This looks like a loose-contact effect to me as the alarm was active for about one second only each time. Do you know if there were other machines running on the same power source (wall power plug or power distributor)? Can you please check the power connector on the machine as well as the integrated fuse (maybe the fuse-holder is not applied well).