QuickBooks Error 6000 80 is one such error that users usually encounter when QB cannot access the data file placed on the server. To fix the error, you must copy the file to the local drive by following the below-given steps.
In the beginning, navigate and then copy the backup file having the file extension “.qbb.”
After this, you need to restore the backup to the local drive-in folder.
Simultaneously, you need to launch and then look for the company file that you wish to update.
Soon after this, copy the file back to its original location, and then you need to overwrite the existing one before moving ahead.
Now, try to access the data file once again and see if the issue is resolved.