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This Works On My Laptop (linux), But Not On My Windows Pc At College, Why? [closed]

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<!DOCTYPE html>  
<html lang="en">  
<head>  
    <meta charset="UTF-8">  
    <meta name="viewport" content="width=device-width, initial-scale=1.0">  
    <title>TokKa Fitness</title>  
    <link rel="icon" href="{{ url_for('static', filename='TokKa-Textless.png') }}" type="image/png">  
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/css/bootstrap.min.css" rel="stylesheet">  
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/js/bootstrap.bundle.min.js"></script>  
</head>  
<body>  
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">  
  <div class="container-fluid">  
    <a class="navbar-brand" href="/">  
        <img src="{{ url_for('static', filename='TokKa-Vertical.png') }}" alt="TokKa Fitness" height="80">  
    </a>  
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent">  
      <span class="navbar-toggler-icon"></span>  
    </button>  
    <div class="collapse navbar-collapse" id="navbarSupportedContent">  
      <ul class="navbar-nav me-auto mb-2 mb-lg-0">  
        <li class="nav-item">  
          <a class="nav-link active" aria-current="page" href="/" style = "color: aqua;">Home</a>   
        </li>  
        <li class="nav-item">  
          <a class="nav-link" href="/pricing" style = "color: aqua;">Pricing</a>  
        </li>  
        <li class="nav-item">  
          <a class="nav-link" href="/contact" style = "color: aqua;">Contact us</a>  
        </li>  
        <li class="nav-item">  
          <a class="nav-link" href="/accessibility" style = "color: aqua;">Accessibility</a>  
        </li>  
        <li class="nav-item dropdown">  
          {% if session.user_logged_in %}  
            <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" style = "color: aqua;">{{ session.user_name }}</a>  
            <ul class="dropdown-menu" style = "background-color: #343a40;">  
              <li><a class="dropdown-item" href="/logout" style = "color: aqua;">Logout</a></li>  
              <li><hr class="dropdown-divider"></li>  
              <li><a class="dropdown-item" href="/settings" style = "color: aqua;">Settings</a></li>  
            </ul>  
          {% else %}  
            <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" style = "color: aqua;">Account</a>  
            <ul class="dropdown-menu" style = "background-color: #343a40;">  
              <li><a class="dropdown-item" href="/register" style = "color: aqua;">Register</a></li>  
              <li><a class="dropdown-item" href="/login" style = "color: aqua;">Login</a></li>  
              <li><hr class="dropdown-divider"></li>  
              <li><a class="dropdown-item" href="/settings" style = "color: aqua;">Settings</a></li>  
            </ul>  
          {% endif %}  
        </li>  
      </ul>  
      <form class="d-flex" role="search">  
        <style>  
          input::placeholder {  
            color: white !important;  
          }  
          input {  
            color: white !important;  
          }  
        </style>  
        <input style = "background-color: #6d6d6d;" class="form-control me-2" type="search" placeholder="Search TokKa Fitness">  
        <button class="btn btn-outline-info" type="submit">Search</button>  
      </form>  
    </div>  
  </div>  
</nav>  
  
<div class="container mt-4">  
    {% with messages = get_flashed_messages(with_categories=true) %}  
        {% if messages %}  
            {% for category, message in messages %}  
                <div class="alert alert-{{ 'danger' if category == 'error' else 'success' }} alert-dismissible fade show" role="alert">  
                    {{ message }}  
                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>  
                </div>  
            {% endfor %}  
        {% endif %}  
    {% endwith %}  
    {% block content %}  
    {% endblock %}  
</div>  
  
<br>  
<br>  
<br>  
  
<footer>  
  <div class ="row">  
    <div class="col" style = "background-color: #343a40; color: white; padding: 20px; text-align: center;">  
    <h4 style="font-family: 'Arial Black'; color: aqua; text-align: center;"><b><i>Your Data</i></b></h4>  
    <br>  
    <a href="/terms-and-conditions" style="color : white">Terms and Condition</a>  
    <br>  
    <br>  
    <a href="/privacy" style="color : white">Privacy Policy</a>  
    <br>  
    <br>  
    <a href="/cookies" style="color : white">Cookie Policy</a>  
    </div>  
  
    <div class="col"style = "background-color: #343a40; color: white; padding: 20px; text-align: center;">  
      <h4 style="font-family: 'Arial Black'; color: aqua; text-align: center;"><b><i>Contact Us</i></b></h4>  
      <br>  
      <a href="mailto:tokkafitness@gmail.com" style="color : white">tokkafitness@gmail.com</a>  
      <br>  
      <br>  
      <p style="color : white">Phone: 01603 312134</p>  
      <br>  
      <a href="https://maps.app.goo.gl/ZY7mfJs1tAHgYrPCA" style="color : white">Unit 34, White Lodge Business Park, Bessemer Road, Norwich, Norfolk, NR4 6DG</a>  
    </div>  
  
    <div class="col"style = "background-color: #343a40; color: white; padding: 20px; text-align: center;">  
     <h4 style="font-family: 'Arial Black'; color: aqua; text-align: center;"><b><i>Follow Us</i></b></h4>  
     <br>  
     <a href= "https://facebook.com/tokkafitness" style="color : white"><img src="{{ url_for('static', filename='Facebook.png') }}" style="width:50px"></a>  
     <br>  
     <br>  
     <a href= "https://instagram.com/tokkafitness" style="color : white"><img src="{{ url_for('static', filename='Instagram.png') }}" style="width:50px"></a>  
    </div>  
  </div>  
</footer>  
  
</body>  
</html>  

I work between remotely on my laptop (ubuntu) and a windows PC at college, how come when i run it from the laptop it's fine, but on windows i get errors?