Please upgrade to 2.3 here.
The 2.2 and earlier branches are no longer being updated.
Fatal error while trying to sign up through embed page with captcha enabled
I created a new page with Wolf CMS and copied Vanilla forums' embed code there. Everything seems to work fine except "Apply for Membership" page: It fails to load the page correctly (no css) and throws following error:
Fatal error: Call to undefined function recaptcha_get_html() in /var/www/[site]/www/forum/applications/dashboard/views/entry/registercaptcha.php on line 52
On line 52 there is following code:
echo recaptcha_get_html($CaptchaPublicKey, NULL, $CaptchaSSL);
Most strange is that if using direct URL (not embed through Wolf CMS) everything works correctly: captcha is there and functional.