A Microsoft file hosting and synchronization service.
Hello Walter Tan,
Thank you for your question.
The archived status is related to the period during which the account did not have a license that included OneDrive. Under the unlicensed OneDrive account lifecycle, an account may be placed into read-only mode after 60 days and archived after 93 days without a valid license
Since you have reassigned a valid Microsoft 365 E3 license, please first confirm that the SharePoint or OneDrive service plan is enabled for the user under Microsoft 365 admin center > Users > Active users > Licenses and apps.
Once a valid license has been assigned, the OneDrive account will normally be reactivated automatically. This process may take approximately 24 to 48 hours to complete.
For more information about archived and unlicensed OneDrive accounts, please refer to the following Microsoft article: Manage unlicensed OneDrive user accounts - SharePoint in Microsoft 365 | Microsoft Learn
I understand that regaining access to the stored files is important, and I hope the account will become available again shortly.
Kind regards,