Close QuickBooks Desktop on your server computer (the one that hosts your company file). Go to the File menu and select Quit QuickBooks Desktop.
Open the Windows Start menu.
Type “File Explorer” into the search and open File Explorer.
Select My Computer from the navigation bar. This is sometimes called "This PC.”
Select and open your C: drive.
Right-click on the screen, select New, and then Folder to create a new file folder. Give it a simple name, like “QB Test Folder.”
Follow the steps to create a backup company file. When QuickBooks asks where you want to save the backup, save it to the folder you just created on your C: drive.
Follow the steps to restore your company file using the new backup.
If you don't see Error -6000,-83 anymore, start using your backup as your main company file. Don't use your old company file anymore. They recommend renaming it so you don't accidentally use it.