Using classic Outlook for Windows in business environments
Hi Steven, hope you're doing well. I’m Ian, and I’m happy to help you today.
Have you tried to use different browser or your browser's incognito/private mode if problem persist.
You can also try to clear your browser's cache in this case.
Please also check the link below if there's a technical issue in your region.
https://portal.office.com/servicestatus
This is a user-to-user support forum and I am a fellow user.
I hope this helps, but please let me know if you need anything else.