Spare tire on, now my car wont start!

I end up getting a nail in my tire ( i dont know
when this happened ) but my tire was on flat
the next day so I desided to change the tire
myself i had a spare in the truck ( the front
passager tire ).. I turned my car on then a
traction control light popped up but i didnt
think much of it .. So after that i went to just
drive it around the block to get the feel of
the spare tire, so i tried to go over 50mph+ &
its like my car wasnt picking up speed at all,
so i desided to take it back to my house,
parked it, turn the car off, 2 hours later i
came back to my car, now it wont start at
all!! .. Could this be cause of the spare tire
causing the traction control light to come
on? Is it cause of the size of my spare that
making it uneven? I need HELP!!!!