No se muestra reCaptcha

Tengo una web en wordpress 4 y mi captcha no aparece por ningun lado. He instalado el plugin siguiendo las instrucciones y todo parece ir bien. He conseguido mis claves publicas y privadas y lo he configurado. Sin embargo el Captcha no se muestra, no aparece al publicar los comentarios ni en el Theme. Pero da error por no haber puesto bien el captcha. Una ayuda por favor. -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.

Re: I need help with verify.php

Here is my files where i have implement the recaptcha. Maybe someone can fix the problem thanks in advance. -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.