The Help Desk has received reports from users of issues loading files from Office 365 apps including OneDrive, Sharepoint and other Office Online apps.
This appears to be a Microsoft issue - here is what they are posting:
Title: Delays or problems loading SharePoint Online sites for OneDrive
User impact: Users may experience intermittent delays or navigation errors when accessing SharePoint sites or OneDrive content.
Current Status: We're investigating a potential issue and checking for impact to your organization. We'll provide an update within one hour.
Updates will be posted to this UMW System Status page http://status.umw.edu
and our Twitter account https://twitter.com/umwIT
Thanks for your patience as we work to resolve this issue. Please contact the IT Help Desk if you have any questions or concerns.
In Person: HCC Room 112