Hey there, Joaquin Yoplac
If no one has signed into the tenant (through the Azure portal) for a pro-longed period of time. The system marks the tenant as inactive. This is usually around 200 days. When this happens, it will trigger the error message above with the 225 error. You will have 20 days from the first day your tenant is marked as inactive to reach out to Microsoft business support to request your tenant to be reactivated.
If you are within the 20 day period, please use the phone number for your region to reach out to support, in this article here: https://support.microsoft.com/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2
When reaching out to support, you will be greeted by an AI bot that will ask for information about why you are calling. Please speak clearly to the bot, so it can understand you. Please say 'Azure Tenant locked out due to inactivity'
This will allow the bot to direct you to the right team who can help.
If it is after the 20 day window. Please be aware that the system starts deleting resources and information on the tenant. This is to comply with Microsoft's Data Protection policies here: https://www.microsoft.com/trust-center/privacy/data-management#leave
Once this has happened, support will not be able to retrieve this data or reactivate the tenant. Instead, you would need to sign up for Azure again (using a different account if you have one, to make it easier). Then re-create the tenant again.
Hope this helps,
Nathan