Dear John Hughes2:
Thank you for using Microsoft products and posting in the community.
It seems to be a known issue with Microsoft 365, affecting access to Microsoft applications and services, including OneDrive for personal and business use, as well as OneNote synchronization.
Currently, these issues have been fixed now, please stay updated by monitoring the service status, where any fixes will be promptly indicated.
<https://portal.office.com/ServiceStatus>
****If the problem persists, please try accessing it again to see if it can be alleviated.
Your patience and understanding during this period are greatly appreciated.
Warm Regards,
Jack | Microsoft Community Support Specialist