The Zero Spam plugin interferes with the functionality of the affiliate registration.When the option Registration Support is enabled, the affiliate registration is blocked returning this message ERROR: There was a problem processing your registration.
![zero_spam_settings](http://docs.itthinx.com/wp-content/uploads/2015/06/zero_spam_settings.png)
Solution
To resolve the problem, disable the option Registration Support.
We recommend to use the following free alternatives to protect from registration spam:
Affiliates ReCaptcha and Affiliates Captcha.