I spotted two things. First, you are missing the call to global $nff_custom_fields;
in your nffpc_save_custom_profile_field
function so the variable is undefined. Second, on line 58 and 59 your callback functions have an ‘s’ on the end, but your function name on line 44 does not.
Thanks, I tryed that, but not working so far 🙁
Got it to work with your help, just forgot that i changed update_user_meta to update_user_option when I was troubleshooting.