Microsoft has been diddling with Outlook for a few weeks. I don't experience the problem you have. But a couple of weeks ago something
changed and the only way I could get Outlook to load in my browser was to allow Office 365 script to run.
If you are accessing Outlook through your browser then there may not be anything YOU can do to resolve the problem. You can try deleting
bookmarks for Outlook and deleting cookies for Outlook....rebooting the browser and then reset a new bookmark.
If you are using Thunderbird or some other email program installed on your computer...try accessing Outlook through the browser...cloud only.
“Every atom in your body came from a star that exploded and the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics...you are all stardust.”― Lawrence M. Krauss
A 1792 U.S. penny, designed in part by Thomas Jefferson and George Washington, reads “Liberty Parent of Science & Industry.”