The same problem here. Thanks qtiestpie. After I read the post above, I tried the move the ReCaptcha tag to the top of the form and submit button became clickable.
But I like the ReCaptcha tag to the bottom of the form.
Here is my contact page: https://www.mirdetstva.net/kontakty-mir-detstva/ and here is my form code:
<label> <span class=”form7_span”>Ваше имя (обязательно)</span>[text* your-name] </label>
<label> <span class=”form7_span”>Ваш e-mail (обязательно)</span>[email* your-email] </label>
<label> <span class=”form7_span”>Тема</span>[text your-subject] </label>
<label> <span class=”form7_span”>Сообщение</span>
[textarea your-message] </label>
[submit “Отправить”]
<label>[recaptcha]</label>
