Hi Imitayz,
It seems you might have used up all the credits for the account and hence the account is disabled as per the terms and conditions.
If you exhaust your available credit before 12 months and you want to continue to use Azure, you can upgrade to a pay-as-you-go subscription in the Azure portal. If you do not upgrade, your Azure subscription becomes disabled. If you’re at the end of 12 months, you can renew your subscription by signing up again for the offer.
https://learn.microsoft.com/en-us/azure/education-hub/azure-dev-tools-teaching/program-faq
Hope this helps.
JS
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