Hi Takayuki Miyoshi, well after a few hours fighting I had deleted everything I had and installed the wordpress from 0, I reckon it was a problem with the them I am using – freelances, since on my other version, i get problems with other plugins.
So after I had deleted everything – 1st one was installed the plugin of the contact form and then the capthca, so it started working!!
I guess there is a conflict between the plugins and the theme in general, but I can’t find where for now, so thank you very much for responding!! I will see if I start experiencing the problem with the captcha I will write again ??
Best regards,
Tania