can’t tick recaptcha box

I have 2 problems with the form:
1.
The recaptcha tick box is not tickable. But a message can still be sent and arrives in my email inbox. I would have thought an unticked box means you can’t send the message?
If I use a spam word like ‘viagra’ in the subject or name box it doesn’t arrive in my email inbox. So Akismet works 🙂

2.
After submission no message is displayed to tell the sender that the message was sent successfully even though in the Contact Form 7 settings all message fields are filled out. How do I activate that it shows a message for the sender?

>> I wonder if I need recaptcha or if Akismet will protect me from spam and I should just remove recaptcha?

This is my form code:

<script src=’https://www.google.com/recaptcha/api.js’></script>
<div id=”content_container”>
<p class=”col-md-4″><label> Your Name (required)</label>
[text* your-name akismet:author]</p>
<p class=”col-md-4″><label> Your Email (required)</label>
[email* your-email akismet:author_email]</p>
<p class=”col-md-4″><label> Subject</label>
[text your-subject]</p>
<p class=”col-md-12″><label> Your Message</label>
[textarea your-message]</p>
<div class=”g-recaptcha” data-sitekey=”6LeH_osUAAxxxxxxxxx;/div>
<p class=”col-md-12″>[submit “Send”]</p>
</div></div>

I would appreciate to get help, thanks!

The page I need help with: [log in to see the link]