Korean question I want to register me to this page(it's a website to learn chinese in korean)https://members.hanjamaru.com/register/register.nhnbut I don't know how to register(what are every field),when I press next it says me this error: 유효하지 않은 주민번호입니다. 다시 확인해주세요. If anyone can help,thank you...