This plugin collapses 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.
To resolve the problem disable the option “Registration Support”.
We recommend to use the following free alternatives to protect from registration spam:
When WPSC is activated or deactivated -but used in the past-, it can cause conflict with Affiliates. It can result in no referrals recorded and/or grant wrong affiliates with a referral.
In order to avoid this go to WP Super Cache settings under Advanced tab and enable the following option: Don’t cache pages with GET parameters. (?x=y at the end of a url). in WPSC settings under Advanced tab called
Once this option is enabled, the affiliates system works as it should.