2003 Chrysler Sebring No front blinkers

I had my front end repaired on my car, and the mechanic couldn't figure out why my front blinkers wouldn't come on. Well recently, I was pulled over by a traffic cop because my back lights apparently are out too. He said something about it being electrical because the back light bulbs didn't appear to be blown out. And thinking back, I had someone look at the front lights, and they tried putting in new bulbs, but that didn't solve the problem either. If it is electrical is that expensive?