GDPR problem

Hello,
could you please check Consent field and make it required? Because the form can be send without agreeing…

I also need to add link to GDPR rules, could you please add option to make whole Consent label text linkable/clickable?

And I get error message after submit button is pressed:
Warning: Use of undefined constant basedir – assumed ‘basedir’ (this will throw an Error in a future version of PHP) in xyz/wp-content/plugins/quick-contact-form/quick-contact-form.php on line 636