Learn HTML Forms by Building a Registration Form - Step 33

Tell us what’s happening:

Step 33
Add another label after the first, with the text Input your age (years): . Then, nest an input with the type of number.

Next, add a min attribute to the input with a value of 13 because users under the age of 13 should not register. Also, users probably will not be over the age of 120; add a max attribute with a value of 120.

Now, if someone tries to submit the form with values outside of the range, a warning will appear, and the form will not submit. Give it a try.
how I can solve ?

Your code so far

<!-- file: index.html -->
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Registration Form</title>
    <link rel="stylesheet" href="styles.css" />
  </head>
  <body>
    <h1>Registration Form</h1>
    <p>Please fill out this form with the required information</p>
    <form method="post" action='https://register-demo.freecodecamp.org'>
      <fieldset>
        <label for="first-name">Enter Your First Name: <input id="first-name" type="text" required /></label>
        <label for="last-name">Enter Your Last Name: <input id="last-name" type="text" required /></label>
        <label for="email">Enter Your Email: <input id="email" type="email" required /></label>
        <label for="new-password">Create a New Password: <input id="new-password" type="password" pattern="[a-z0-5]{8,}" required /></label>
      </fieldset>
      <fieldset>
        <legend>Account type (required)</legend>
        <label for="personal-account"><input id="personal-account" type="radio" name="account-type" checked /> Personal</label>
        <label for="business-account"><input id="business-account" type="radio" name="account-type" /> Business</label>
      </fieldset>

<!-- User Editable Region -->

      <fieldset>
        <label>Input your age (year): </label>
      </fieldset>

<!-- User Editable Region -->

      <label for="terms-and-conditions">
        <input id="terms-and-conditions" type="checkbox" required /> I accept the <a href="https://www.freecodecamp.org/news/terms-of-service/">terms and conditions</a>
      </label>
      <input type="submit" value="Submit" />
    </form>
  </body>
</html>
/* file: styles.css */
body {
  width: 100%;
  height: 100vh;
  margin: 0;
  background-color: #1b1b32;
  color: #f5f6f7;
}

label {
  display: block;
  margin: 0.5rem 0;
}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Edg/131.0.0.0

Challenge Information:

Learn HTML Forms by Building a Registration Form - Step 33

have you tried adding the input element?
you should not delete what is already there, reset the step