I've posted about this issue in form support, I suggest everyone here post a reply on it so you get seen and hopefully this gets solved quicker
https://forums.indiegala.com/threads/error-codes-pfc4-and-pfru-10-when-selecting-payment-for-code-vein.1817/
I keep getting both these error codes when selecting either Paypal or Credit Card as a payment option for Code Vein Deluxe Edition.
(I have sent in an email and am waiting for a response.)
I know i'm not the only one with this issue and the only response I've seen is to wait and try again...