Greetings, oh pink spotty one. There was a duplicate of this thread running back in July, where the answer was found.
Seemingly the digiboard is looking for a component which is not actually fitted to your appliance! The only solution is to “reset” the computer, which is a bit of a specialised job.
Best bet is probably to get some professional help. Check in the Directories for a UKW engineer in your area or pop your postcode up here and someone will pick up on it.
Regards,
Penguin45.