Temperature control goes full power

Hey there,
I am running smoothieware with build date 2020-01-12 on my Metal Delta printer.
The Controller is a MKS SBase V1.3

The remperature controller freaked out now the second time.
I was lucky that I was newar the printer and it “smelled hot” so I checked and the heatbed was extremely hot.
The display showed me 60°C, butthat was definitely wrong.
After doing a power cycle, the display showed nearly 200°C for the bed temperature.

Any hint what could be the reason for that?

had the I had now the scond time