Hi @Ashly Valsalan .
Your best bet may be to contact the billing team and create a ticket with them. https://azure.microsoft.com/en-us/support/options/
I would also recommend checking out the troubleshooting guide for handling issues with subscriptions and sign-ins: https://learn.microsoft.com/en-us/azure/cost-management-billing/manage/troubleshoot-sign-in-issue
If you provide more details about what error you are seeing and can offer screenshots I may also be able to help troubleshoot. If it was a trial subscription it may have expired.