I've tried everything I found on support websites and nothing works. My problem is a little bit weird. Contact Form 7 works just fine on his own.
When I have a form with captcha, I get this error: "Please fill in the required field. Validation errors occurred. Please confirm the fields and submit it again.". All the fields are completed correctly. I cleared the cash, submitted again, same error no matter what browser I use. My clients website goes live in 2 days. Any ideas what is causing this?