What is wrong with my code?

var students = [
  { 
    Name : 'sarah',
    Track : 'ios',
    Achievements : 5,
    Points : 1256
  },
  { 
    Name : 'john',
    Track : 'java',
    Achievements : 6,
    Points : 1354
   },
  {
    Name : 'robert',
    Track : 'javascript',
    Achievements : 7,
    Points : 1458
  },
  {
    Name : 'jefferey',
    Track : 'python',
    Achievements : 8,
    Points : 1924
  },
  {
    Name : 'mason',
    Track : 'ruby',
    Achievements : 9,
    Points : 1276
  }
   ]


var student;
var search;
var message;

function print (message){
var outputDiv = document.getElementById('output');
outputDiv.innerHTML = message;
}

function getStudentReport( student ){
 var report = '<h2>Student: ' + student.name + '</h2>';
 report += '<p>Track : ' + student.Track + '</p>';
 report += '<p>Achievements : ' +  student.Achievements + '</p>';
 report += '<p>Points : ' + student.Points + '</p>';
 return report;  
}

while (true) {
  search = prompt('search student records : type a name ( or type "quit" to end)');
  if (search === null || search.toLowerCase() === 'quit') {
    break;
  }
for ( var i = 0 ; i < students.length ; i+=1 ){
  student = students[i];
  if(student.name === search){

   message = getStudentReport( student );

     print(message);

    }
  }

}