If you’re seeing the “Input Error: Invalid Referrer” error it’s because Recaptcha is currently broken.
I’m working on resolving this issue now and I’ll post updates as I progress
====Update 1=====
I turned off Recaptcha for registration and all captchas for the Contact Us form so this problem has been temporarily bypassed. If you’re having any problems you should be able to contact me now.
I’ll turn Recaptcha on when I resolve this issue. I apologize for any trouble.