We found the following error in your HTML. An {% unsubscribe %} tag is required.

<!-- Footer Section -->
<br></br>
<table cellpadding="0" cellspacing="0" align="center" width="600" style="background-color:#1f1f1f; border-radius:0 0 50px 50px; margin:auto;">
  <tbody>
    <tr>
      <td align="center" style="padding:20px 20px 40px 20px; font-family: 'Montserrat', sans‑serif; color:#ffffff; font-size:14px; line-height:20px;">
        <!-- Logo -->
        <a href="https://topwebdesignus.com" target="_blank" style="text-decoration:none; display:inline-block; margin-bottom:20px;">
          <img src="https://topwebdesignus.com/images/ftr-logo.png" alt="Top Web Design Logo" title="Top Web Design" width="150" style="display:block; margin:auto;">
        </a>
        <!-- Address & Contact -->
        <p style="margin:0 0 10px 0;">
          <strong>Top Web Design US</strong><br>
          3202 McKnight East Dr #106<br>
          Pittsburgh, PA 15237
        </p>
        <p style="margin:0 0 20px 0;">
          Phone: <a href="tel:+13374464337" style="color:#ffffff; text-decoration:none;">+1 (337) 446 4337</a><br>
          Email: <a href="mailto:info@topwebdesignus.com" style="color:#ffffff; text-decoration:none;">info@topwebdesignus.com</a>
        </p>
        <!-- Social Media Icons -->
        <p style="margin:0 0 20px 0;">
          Follow Us:
          <!-- Facebook Icon -->
          <a href="https://www.facebook.com/TopWebDesignUS/" target="_blank" style="margin:0 8px; text-decoration:none;">
            <img src="https://upload.wikimedia.org/wikipedia/commons/5/51/Facebook_f_logo_%282019%29.svg" alt="Facebook" width="24" style="vertical-align:middle;">
          </a>
          <!-- Twitter Icon -->
          <a href="https://x.com/TopWebDesignUS" target="_blank" style="margin:0 8px; text-decoration:none;">
            <img src="https://images.seeklogo.com/logo-png/49/2/twitter-x-logo-png_seeklogo-492396.png" alt="Twitter" width="30" style="vertical-align:middle;">
          </a>
          <!-- LinkedIn Icon -->
          <a href="https://www.linkedin.com/company/top-web-design-us/?viewAsMember=true" target="_blank" style="margin:0 8px; text-decoration:none;">
            <img src="https://static.vecteezy.com/system/resources/previews/018/930/480/non_2x/linkedin-logo-linkedin-icon-transparent-free-png.png" alt="LinkedIn" width="40" style="vertical-align:middle;">
          </a>
        </p>
        <!-- Unsubscribe & Copyright -->
        <p style="margin:0; font-size:12px; color:#aaaaaa;">
          You are receiving this email because you signed up for Top Web Design US.<br>
          <!-- Correct Unsubscribe Tag -->
<p style="margin:0; font-size:12px; color:#aaaaaa;">
  If you'd no longer like to receive emails, {% unsubscribe 'click here' %}
</p>
        </p>
      </td>
    </tr>
  </tbody>
</table>
<a href="{% unsubscribe_link %}">Unsubscribe here.</a>

I have tried using the unsubscribe link but I am still not able to solve this issue? Could you please verify if my code has a problem? I don’t understand why it keeps poping this error up. Please anyone help me solve this as soon as possible