An internal error occurred reCAPTCHA

I have this problem on my forum:An internal error occurred: 4E4D917F5DA78.ADF9B4A.1930it has always worked well until a short time ago! before I had generated the key with an account which I then closed .. is due to this the problem? Now use the key created with this account but the problem persists .. help = (sorry for my english -- 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://groups.google.com/group/recaptcha. For more options, visit https://groups.google.com/groups/opt_out.