Login Problems with Edge Browser

Hi, all. I'm new here so please let me know if this information is shared in a pinned post.

I cannot log into Microsoft Edge. When I click the sign in button in the upper right corner of the browser window, I get this message: "Because you're accessing sensitive info, we'll send a code to [MY MICROSOFT EMAIL ADDRESS] to verify your identity"

However, the code never appears in my outlook inbox, which still has access to my Microsoft Live account.

I really don't want to stop using Microsoft Edge but without being able to log in...

Thank you in advance!

EDIT: I have now found out that I no longer have access to my Microsoft Store account, either. I get the same message when I try to log in there.