Miscellaneous topics that do not fit into specific categories.
Exit all Office apps and run an Online Repair of Office; see https://support.microsoft.com/en-us/office/lifecycle/repair-an-office-application .
Before you begin, make sure that you can access your Microsoft account at https://account.microsoft.com/services and that Office is associated with it, so that you can reinstall later (because a reinstall is usually the final step in an Online Repair).