내 맥에서 로그인 버튼을 누른후 계속 "잠시만 기다려주세요" 라고만 맴돌고 있습니다.

First, please confirm you can sign in normally at office.com or account.microsoft.com in a browser, if that also fails, there may be a network or account issue to fix first. Then quit all Office apps, restart the Mac, and make sure Office is fully updated (open Word > Help > Check for Updates and install any pending updates)