1. Check your recycle bin in OneDrive since items are typically retained there before deletion.
Navigate to: https://nvdonor-my.sharepoint.com/
Click the Recycle Bin on the left hand side to review recycle bin items.
2. If it's not there, you should be able to restore it by using the restore option in OneDrive.
Navigate to: https://nvdonor-my.sharepoint.com/
Click the Settings Icon top right - Restore Your One Drive. You will be presented 30 days of backups and changes made to your OneDrive that you can restore.