I can not see my mails on this account , I have always this error message, how could I read my mails to read the codes they send me to deblock applications like spotify ... Please , use my phone to respond me <mod: PII removed>, Many thanks

The error message in the screenshot (OwaUserHasNoMailboxAndNoLicenseAssignedException, HTTP 500 with esrc: StartupData) indicates that the user account can sign in, but the corresponding Exchange Online mailbox is disabled or not provisioned/licensed. In this state Outlook on the web cannot open the mailbox, so email (including verification codes from services like Spotify) cannot be read.

Resolution requires action by the Microsoft 365/tenant administrator:

1. The tenant administrator must check the mailbox status for this user in Exchange Online.
2. If the mailbox is disabled and AccountDisabled : True, the admin needs to re‑enable the mailbox and ensure an appropriate Exchange Online license is assigned.
3. After the mailbox is re‑enabled and licensing is corrected, sign out of all Microsoft sessions, clear the browser cache, and then sign in again to Outlook on the web.
4. If the problem persists after the admin has confirmed the mailbox is enabled and licensed, the admin should continue troubleshooting or open a support request with Microsoft.

Until the mailbox is re‑enabled at the service level, web access to mail (and therefore to verification codes sent to this address) will not work.

References:

• Not able to have access to my email ! - Microsoft Q&A