Hi @nhaughey,
A warm welcome to our Community Forums and thanks for your post.
I am really sorry you're having this issue when trying to access your email.
Looking back on previous threads whereby users have reported a similar issue, clearing cookies/cache has usually done the trick. I am sorry this hasn't been the case for you. Does this issue still occur when using your browsers Incognito/Private mode?
Have you been able to try logging into webmail on any other browser such as Internet Explorer or Firefox?
Let us know so we can offer further support if needed.