You would have to reset the motherboard.
You would need to plug a vega monitor and keyboard.
Reboot the printer and the setting will load on the monitor.
Email me and I will send you the doc to reset the mother board.
If that does not fix the issue then your motherboard overheated and damaged the CPU.
There is a fan on the cpu make sure it still works.
Over time that fan will give out. We had this issue before.