error results from the CPAN

Alice
? my ($app, $dest, $error) = @_;
<html>
  <head>
    <title>Use Alice Login</title>
    <link rel="shortcut icon" href="<?= $app->static_url("favicon.ico") ?>">
    <style type="text/css">
      body {
        text-align: center;
        font-family: Helvetica, Arial, sans-serif;
        font-size: 12px;
        background: #eee;
      }
      form {
        display: block;
        width: 150px;
        margin: 0 auto;
        text-align: left;
        background: #fff;
        border: 8px solid #ccc;
        padding: 20px;
      }
      input, label {
        display: block;
        width: 150px;
      }
      input {
        margin-bottom: 15px;
      }
      input[type="submit"] {
        font-size: 16px;
        margin-bottom: 0;
        margin-top: 30px;
      }
      .error {
        color: #d00b0b;
        display: block;
        margin-top: 15px;
      }
    </style>
    <link rel="apple-touch-icon" href="<?= $app->static_url("image/alice.png") ?>" />
    <link rel="apple-touch-startup-image" href="<?= $app->static_url("image/alice.png") ?>" />
    <meta name="viewport" content="width=device-width; initial-scale=1; maximum-scale=1" />
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="format-detection" content="telephone=no">
  </head>
  <body>
    <form action="/login" method="post">
      <input type="hidden" name="dest" value="<?= $dest || "/" ?>" />

      <label for="username">User Name:</label>
      <input type="text" name="username" value="" id="username" />
      
      <label for="password">Password:</label>
      <input type="password" name="password" value="" id="password" />
      
      <input type="submit" value="Log in" />
      <? if ($error) { ?>
      <span class="error"><?= $error ?></span>
      <? } ?>
    </form>
  </body>
</html>
( run in 0.752 second using v1.01-cache-2.11-cpan-39bf76dae61 )