So I followed the tutorial here User sign-up | Kirby CMS, I am going to set up my comments on the blog as I don’t want to use a plugin or discourse.
Although it works and the user is registered after completion the form, it returns an error. But all it returns is the word ‘error’. Can’t find what’s wrong or get more information about the error. Does anyone know how to get more info?
Did you implement the part with the redirect? At a quick glance it seems to me as if there was something wrong with the parameter naming, need to check details tonight. Will get back to you.
I was just at the redirect part. Maybe there is no error and I just need to redirect away. But the code is if errors >0 then display which made me think there was something I was missing.
Works fine once I add the redirect though.
Great, was about to test but running into errors with 3.9.7, so need to debug.
Still trying to figure it out, something is not quite right even if it is working as intended. Love debugging… not… 
So, not sure what was happening but I just went back to start looking at this again and it works fine, no errors…