72 Valiant turn signals

I just replaced the turn signal cam.when I first popped the cam off of the driving gear I heard a ping and sen a little sheet metal piece on the floor.I couldn't figure out where it came from, just continued putting the signal cam on .I put it on and now I get my lights/parking lights on ,all my signal lights front and back.but now my passenger side rear brake light doesn't work also when I turn my emergency flashers the passenger side also doesn't work.so basically everything works but my passenger rear flasher light and passenger brake light.anyone know what can be the problem? I checked the bulbs and connections all seem fine.perhaps the thin sheet metal is the problem? I don't know where that goes lol.anyone have some pictures?