If you exceed your Microsoft storage, you won’t be able to upload, edit, or sync new files (such as Camera Roll) to your OneDrive. Learn more.
If the OneDrive sync app icon doesn't appear in the notification area of your computer, OneDrive might not be running. Go to Start or Finder to see your app list and restart OneDrive.
If you're still having issues, try unlinking/relinking your OneDrive account.
For anything else, use our guided support troubleshooting tool below:Start