Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
The error code 00000000 does not identify a specific cause by itself. Since you mentioned that everything is okay now, could you please clarify a couple of details?
Are you now able to sign in to Windows and use Microsoft 365 applications normally, or is there still something you cannot access? When you changed your email address, did you change the Microsoft account used to sign in to Windows, or did you modify the email address associated with your existing Microsoft account?