2003 Mazda Protege parking lights and cluster lights?

Last week, with my Mazda protege5 2003, I had a few wires hanging under the front bumper (between the bumper and the radiator) and 2 days ago I heard a big noise while I was on the highway and all the lights that controlled with the dimmer went off. So I stopped on the side of the road and I saw the wires all the way from the bumper going to the back of the car and I tied it to the bumper so it wouldn't go in my wheels. And I also noticed that all my parking lights doesn't work anymore. And I don't know what I can do to fix this problem. Thank you.