2004 Other Mitsubishi Models

Steering problem
2004 Other Mitsubishi Models Automatic 98700 miles

I havea couple of questions. My 2004 Mitsubishi Endeavor is a problem all of a sudden. A body shop repaired a dent in the door and now I've got two problems. First, whenever I turn my wheel sharply as if to make a turn or parallel park the wheel is impossible to turn. There is power steering fluid and no leaks so what could it be? Secondly, my care now won't start at all. I turn the key and get nothing, my lights are dim, and my remote control keyless entry won't work! Heck I can't even lock the door with my key! What's going on here?