I want your faulty electronics
assuming you have visualy checked all bulbs to make sure they are working.
It could be there is dodgy contact on a bulb.
The bulb check system works on resistance.
If the rear bulbs, lets say the brake lights, are generating to much resistance but still working it would flag up as a bulb gone.
I'd be tempted to check connections on the rear lights first. Make sure they seated correctly and got nice clean contacts.
I also hate error lights on my dash but it be ok if i could see what my DIS is erroring at. my screen has comeplty failed.