I found that reCaptcha API did not work at my site (Omeka 2.5, PHP 5.4.16) and requested to upgrade to v.2. I’ve registered a new key from Google reCapcha site and config the public key and secret again in Security tab. I have been waiting to see if any change in my Omeka site for 2 hours since I got the new key from Google but the error still in my front page.
Are that all steps I need to do to upgrade reCaptcha API V2 in Omeka? Please advise. Thank you very much!