MINI

C:/xampp/phpMyAdmin/templates/login/twofactor/

files >> C:/xampp/phpMyAdmin/templates/login/twofactor/key-https-warning.twig

 {% if not is_https %}
<div class="error">
{% trans "You are not using https to access phpMyAdmin, therefore FIDO U2F device will most likely refuse to authenticate you." %}
</div>
{% endif %}