Why break light fault supply

Friends I bought my 207 vehicle, when I run the car, it gives break light fault supply.

Problem One of your brake lights is not on.

I understand, now I see

The brake lights aren't on, I guess

I looked at the brake lights, it is burning, I wonder if there is a problem with the lamp on top, one of them is not lit.

If the bulbs have been replaced with the original, but a different bulb with different amp value is installed, it may not be detected as plugged.

the bulbs are not original or even the one you said on the top gives the same error if it doesn't light up

Friends, when I start my 207 2007 model gasoline 1.4 vehicle that I just bought, it gives a warning and I often get light breakfauly downloader warnings while driving, what is the reason?