My charger(cigarette lighter) isn't working? how can I fix this?

Check Fuses. There is a seperate fuse for the cig lighter and the power port. Hope this helps. Thanks

The lighter socket or the element.
Check the element for burn marks and the socket for debris blocking the contacts.

Should be under the steering wheel like any other car. There is a box. Just open up the box (You may need to pry off the cover with a flat head screw driver). I own a 91 Explorer and there is a diagram right on the back of the cover along with a fuse pulling tool. The owners manual will also have a diagram. Look for the terms "Accessory", "Lighter", "Socket" etc. Any Ford I've ever seen supplies power to the cigarette lighter even when the car isn't running so it will be easy to test.

Not a Peugeot expert, but its possible the charger is not going in far enough to touch the center of the lighter receptacle. Does the lighter work with the lighter element ?
Sometimes debris collects in the bottom of the receptacle and blocks the contacts.

I know this isn't a standard "fix" but what we do is to use a cigarette lighter to cigarette lighter jump start.

While this type of "jumper" doesn't work very well to start a vehicle, it does get you power enough to open the hood and other electronic openers.

The cigarette lighter plug should also work for the phone charger as long as the phone charger uses the cigarette lighter style plug(long with two metal contacts on the sides and a button contact on the tip). Most standard car chargers will fit both cigarette and auxillary style plugs.

how about checking the fuse and wiring to lighter

First using multimeter check if there's voltage at the cigarette lighter slot as if there is then the problem is in charger, otherwise check for continuity of Cigarette lighter wiring

there could be a wire in side the unit its self and that might have come dislodged

try it and let me know

The part that Pulled out Should Screw into the Part that is still in the Car.