So I have a 2017 Nissan Altima 2.5 sedan 4 cylinder and the issue is that the brake pedal keeps getting stiff so when I press the push start button it wont turn over but everything else comes on

So what is happening is my 2017 nissan altima sedan 2.5 4 cylinder the brake
pedal keeps getting stiffer which isnt allowing me to turn my car on. When I do
push the button everything else works like my radio lights and dash. Not sure if
anyone else has had this problem and has a soultion but it would be nice if so