Car Accidents Can't Be Blamed on Driving Without a Valid License or yes?

my mom was on a car accident a few months ago but it wasn't her fault it was the other lady that was distracted and didn't saw that her light was red and hit my mom but she has not driver license and the officer kept on saying that it makes it her fault of the accident just because she doesn't have a license is that possible she is not asking for damage pay because the car is aalready fix she just don't want to be blame for a accident that wasn't her fault I need a answer please