Java Script wird nicht ausgeführt?

hallo, und zwar wird bei mir nicht Java Script ausgeführt. Könnt ihr mir helfen woran dass liegt???

HTML:

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  <title>Quiz Wuiz</title>

<link rel="stylesheet" href="/quiz.css">

</head>

<body>

  <img src="/logo.png" alt="img" id="img" class="img">

  <h1 id="title">Today's Quiz</h1>

  <div id="quiz-container">

    <div class="questions">

      <h2 id="question"></h2>

      <ol type="A">

        <li class="option"><span id="option0" onclick="calcScore(this)"></span></li>

        <li class="option"><span id="option1" onclick="calcScore(this)"></span></li>

        <li class="option"><span id="option2" onclick="calcScore(this)"></span></li>

        <li class="option"><span id="option3" onclick="calcScore(this)"></span></li>

      </ol>

      <h4 id="stat"></h4>

    </div>

    <div class="buttons">

      <button type="button" class="next">Next</button>

    </div>

  </div>

  <!-- scoreboard section -->

  <div id="scoreboard">

    <img src="/logo.png" alt="">

    <h2 id="score-title">Your Score</h2>

    <h2 id="score"></h2>

    <button type="button" id="score-btn" onclick="backToQuiz()">Back to Quiz</button>

    <button type="button" id="check-answer" onclick="checkAnswer()">Check Answers</button>

  </div>

  

  <div id="answerBank">

    <h2>Answers :</h2>

    <ol type="1" id="answers">

    </ol>

    <button type="button" id="score-btn" onclick="backToQuiz()">Back to Quiz</button>

  </div>

  

  <script src="/quiz.js"></script>

</body>

</html>

JAVA SCRIPT:

Bild zum Beitrag
HTML, Webseite, JavaScript, HTML5, Informatik, Programmiersprache, Webentwicklung, Frontend