Skoda Octavia mk3 Amundsen doesn't work

Hi there, I am new here, hopefully I'll find the answer here. My amundsen doesn't work at all. It happened to me at first time like three years ago, no blink, no power, like dead so I tried reset by holding power button for 15 sec and it start works, then like one year ago and now. But now doesn't work nothing, reset doesn't work. Comp says there is one fault, on gateways cam pus, but what it is please? Power is there. Any idea please?