How to fix a buggy Outlook and To-Do list?

Question

My problem started on July 13/2024. It appears just when I add my school account for the benefits of the student that signed up for Microsoft 365. Everything was going smoothly until I went back to my personal account. (The standard subscription-feature of 365, but with the family sub which let you invite and have at most five people with benefits, and I person which the subscription was lend) My change account and go to access the Outlook.

Refresh the application

UTC Date: 2024-07-13T22:48:28.788Z Client Id: CC96392EB6D748C7B540ECCF45EE9535 Session Id: 13c8c60a-144d-4d2c-a4de-78ba4a2b606c Client Version: 20240704010.14 BootResult: configuration Back Filled Errors: Unhandled Rejection: Error: 500:undefined|undefined:undefined err: Microsoft.Exchange.Clients.Owa2.Server.Core.OwaUserHasNoMailboxAndNoLicenseAssignedException esrc: StartupData et: ServerError estack: Error: 500     at Object.s [as createStatusErrorMessage] (https://res.cdn.office.net/owamail/hashed-v1/scripts/owa.mailindex.47ebc6af.js:1:120913)     at https://res.cdn.office.net/owamail/hashed-v1/scripts/owa.mailindex.47ebc6af.js:1:133149 st: 500 ehk: X-OWA-Error efe: PH8PR02CA0001, BN9PR03CA0756 ebe: PH8PR12MB6985 emsg: UserHasNoMailboxAndNoLicenseAssignedError  

I try to refresh it, but it never works

The url was (https://outlook.office.com/)

But something interesting is that it works for the https://outlook.live.com/

The problem of to do

Then I go to the dashboard again, just to find out that is don't work

Your account doesn't work with To Do

Your account isn't on Exchange Online, so Microsoft To Do doesn't support it. Contact your IT admin for more info.

I think that To do was confusing with my school account.

(Note: A curious thing is when I choose an account, the school account is on the top)

Thank you very much for your understanding, and I hope this issue gets fixed quickly.