ReCaptcha problem with older Vanilla install
I'm currently running Vanilla 2.2, but am not able to upgrade to the latest/greatest Vanilla because my hosting provider still only provides for PHP 5.5 and no higher. Ridiculous, I know.
I now have a problem where the embedded ReCaptcha is not working:
I've attempted to go to the URL specified to "upgrade", but I do not see how to; my account on the Recaptcha site says I'm on "v2", and my public and private keys are correctly entered in the Vanilla Settings/Registration area.
Suggestion on how to fix, absent upgrading to a version of Vanilla that requires PHP greater than v5.5?
Thanks in advance....