[ckan-dev] CKAN 2.2 Error 500 after trying to register user using reCAPTCHA

[CKAN UGIS]

Hello,

After updating my CKAN instance from 2.0.3 to 2.2 I decided to add
reCaptcha to prevent spambots from registering.

I did as the documentation said, uncommented a couple lines in
production.ini, added private and public keys. Reloaded the web server.
After that, captcha does show on registration form, but after I fill all
the fields and press "Create Account" I'm being shown "Error 500" page.

Unfortunately, I couldn't find where exactly the error happens in Apache
error log.

Please tell what can I do to troubleshoot this. Or maybe I should provide
some additional info?

Regards,
Dmitry.
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