Custom Validation Bug/Issue

Greetings,

My current issue is to have a field in the registration form that would contain a specific set of characters (that are predefined by me, for example PH3f1X) that would permit a user to register.

On github I found a hint: https://gist.github.com/ultimatemember/78aac8b268b2c75489f0
But it seems to be outdated, since, after using the code, a blank screen appears. The plugin works but, instead of showing the error message, I am being redirected to a blank page.

Would You have a solution?

Thank You!

Regards,
Edgars

• This topic was modified 6 years, 10 months ago by mrbubble.