Mass of Spams through Chronoforms with google ReCaptcha

Since about 1 Week I got lots of Spams through my Contact Forms with ReCaptcha.
I tested my Forms and if I try to bypass Captcha it wont send. Whats wrong? Or ReCaptcha isn't secure anymore?
I'm using Chronoforms 6.1.4.

ReCaptcha is fine, but it won't stop people manually sending the forms. What's your idea of "lots" of spams?

I have three Websites with Chronoforms and I got about 15-20 Spams a Day through it.

Attach {debug:} to the end of your email that would help