I need help pls help with exercise 5. the story heats up


what is wrong with mu code

confirm("are you ready?");

var age;
age = prompt("whats your age");

if(age < 13){
console.log(" you are allowed to play but I take no responsibility");


console.log("You are at a Justin Bieber concert, and you hear this lyric 'Lace my shoes off, start racing.'");

console.log("Suddenly, Bieber stops and says, 'Who wants to race me?'");

var userAnswer = prompt("Do you want to race Bieber on stage?);

if(userAnswer === "Yes")
console.log("You and Bieber start racing. It's neck and neck! You win by a shoelace!");
console.log("Oh no! Bieber shakes his head and sings 'I set a pace, so I can race without pacing.'");


var age = prompt("whats your age");

If this is the problem it should have probably gone wrong much earlier.
At first sight I can't see, what else should go wrong.