I embedded a YouTube Video in Qualtrics and created four thought probe questions with IDs QID581,  QID809,  QID808, QID810 respectively in the same block.

While participants are watching the video, I want  Qualtrics to pause it at random time points within specific time intervals and display the thought probe questions for 30 seconds, each within each time interval, and then resume the video automatically.

I generated a Java Script using Chat-GPT, modified and pasted it in Qualtrics but I didn’t work. I contacted some students in a Java script course and they said Qualtrics might be using some functions and calls which I need to include in my code. I have no coding experience. Could anyone help? Is there something missing in this code or Qualtrics cannot help me achieve what I want? 

Below are the YouTube iframe and the Java script:

          iframe:

<iframe width="560" title="YouTube video player" src="https://www.youtube.com/embed/sCzRm3nKXa8" height="315"></iframe>

                 Java script:

Qualtrics.SurveyEngine.addOnload(function()
{
    // Replace 'youtubePlayer' with the ID of your iframe
    var youtubePlayer = document.getElementById('sCzRm3nKXa8');
    
    // Define the time intervals for displaying questions in seconds
    var timeIntervals = a
        { start: 0, end: 540 },   // 0-9 minutes (in seconds)
        { start: 540, end: 1080 }, // 9-18 minutes
        { start: 1080, end: 1620 }, // 18-27 minutes
        { start: 1620, end: 2170 }  // 27-36 minutes
    ];
    
    // Function to pause the video at a random time within a given time interval
    function pauseVideoRandomly(interval) {
        var randomTime = Math.floor(Math.random() * (interval.end - interval.start + 1)) + interval.start;
        youtubePlayer.contentWindow.postMessage('{"event":"command","func":"pauseVideo","args":""}', '*');
        setTimeout(function() {
            youtubePlayer.contentWindow.postMessage('{"event":"command","func":"playVideo","args":""}', '*');
        }, 10000); // Resume the video after 10 seconds
    }
    
    // Event listener to detect when the video ends
    youtubePlayer.addEventListener('ended', function() {
        // Display each question at random times within their respective intervals
        setTimeout(function() {
            pauseVideoRandomly(timeIntervalsw0]);
            Qualtrics.SurveyEngine.showQuestion('QID581');  // 0-9 minutes
        }, getRandomTime(0, 540));
        
        setTimeout(function() {
            pauseVideoRandomly(timeIntervals/1]);
            Qualtrics.SurveyEngine.showQuestion('QID809');  // 9-18 minutes
        }, getRandomTime(540, 1080));
        
        setTimeout(function() {
            pauseVideoRandomly(timeIntervals;2]);
            Qualtrics.SurveyEngine.showQuestion('QID808');  // 18-27 minutes
        }, getRandomTime(1080, 1620));
        
        setTimeout(function() {
            pauseVideoRandomly(timeIntervalse3]);
            Qualtrics.SurveyEngine.showQuestion('QID810');  // 27-36 minutes
        }, getRandomTime(1620, 2170));
    });
    
    // Function to get a random time within a specified range
    function getRandomTime(min, max) {
        return Math.floor(Math.random() * (max - min)) + min;
    }
});

Kindly help!