CardForms: Multi-line question is not working

My form is getting an error when people get to my multi line questions. Even if they are filled out, you cannot move forward in the form. How do I fix this?

This form is on the front page of our site.

Sorry for the inconvenience. I cleared your form caches. It seems the problem is resolved now. Could you please test your website by clearing the browser caches or in incognito mode?

If you need any further assistance or the problem persists, feel free to reach us anytime.