'' side lamp default '' warning

My car 207HDI gives side lamp default warning when I start my car. I checked all the lamps and couldn't find anything. Two months ago, the dipped headlight bulb was not on, I had replaced it, did I see a mismatch because of it, but why did the mismatch 2 months ago do now? I couldn't get out of business.

Did you look at the bulbs on the back plate?

I think he says the bodywork signal on the side.