oooooooooo... you have 1 of a few problems.
1. (Best case scenario) You have a small smudge on the disk, have you tried cleaning it?
2. The game save you have created has glitched, sometimes happens, you may have to start over.
3. (Worst case scenario) Your game is broken
To see which it is, first try cleaning it. Then if you still have problems, if you have a friend with the game try using their game to play your file. (this will see if it is the disk). If all else fails, make a new character. This usually solves most problems. (Be thankful you glitched early)
Good... Bad... I'm the one with the gun.
Hail to the King Baby!!