October CMS Magic Forms Plugin reCaptcha "The partial 'recaptcha' is not found"

Question

I have October CMS v1 on my website and Magic Forms Plugin. I want to use reCaptcha in my forms. I set the Site key and Secret key. And put the code:

    <div class="form-group">
     {% partial '@recaptcha' %}
    </div>

But I have an error The partial 'recaptcha' is not found.

I changed it into

    {% partial __SELF__ ~ '::recaptcha' %}

but have the same error.

Could you help me with this issue?