Tronxy2 pro shutting down

Hi All

My Tronxy2 pro machine has worked perfectly for the past 4 months but has just developed a problem.
It starts the print as per normal but then stops and shows "Shutting down" on the touch screen. If I switch off and then turn back on
the printer asks me if i want to continue from the interruption and then continues to print, it then continues to print for a time and then shuts down again.
During each event my mains power has not been interrupted and is stable.

After some web research i have found that this seems to be a common problem but nobody seems to have a fix.
If anybody has any ideas they would be very much appreciated.

Thanks in advance