Miele hob error FE 10

Hello. I own a miele ceramic hob KM544. Recently when I turn it on it shows the error FE 10. Sometimes right after I turn it on, sometimes after a while. I have to turn the main power off for some seconds and then back on. Usually this works but not every time. I can’t find any info’s about this error. I have only read in some websites that it’s “an internal error”. Is there something I can do. I m quite knowledgeable in simple repairs.