Outlook.com email account stopped working

A few days ago, my iPhone (XR, IOS version 15.5), started prompting me for the password for my email & kept telling me wrong password. I finally just deleted the account from the phone & tried to add it back in & when entering the email address, it’s saying the account doesn’t exist! i updated to the latest IOS, 16.0.3 & still no difference.

I can get to the account via outlook.com

Clearly, the account exists, what is going on?!?!?