Nova

I tried using All order forms that come with whmcs v.8.1. Potential clients cannot select "Use my own domain" to order hosting because the order form does not permit the selection. Please tell me what works? I tried all themes including classic, default, Six and Twenty-one etc. With no luck. The default setting shows the whmcs banner as well. Help please as no one can order as it sits!

What is the for this error when trying to submit a config? Invalid CSRF Protection Token