Greetings!
This is Christine, Sorry to hear that you're experiencing issue with accessing your Outlook account. No worries, a lot of users are also experiencing this since the Hotmail/Outlook server is having Service degradation. Microsoft is already aware of this and already working on it. So let's wait for it to be fixed. Your patience is appreciated.
If your account is locked out, under the Microsoft Consumer Product, look for Outlook section, please follow the steps from https://portal.office.com/servicestatus
You can also check there when the service is already up and running or fixed.
Thank you,
Christine