Quickbooks -6000-83 error occurs when you tried to access quickbooks company file. there are some reason to occurs Quickbooks -6000-83 error. 1. Converting your quickbooks company file from old version to earlier version in a network. 2. File missed on quickbooks installation 3. Insufficient permissions allow for network server 4. Damaged company file 5. Security Software blocking 6. The file extension may be different extension 7. Using Linux servers How to fixed quickbooks -6000, -83 we can fixed this problem via some ways: 1. Using quickbooks file doctor tool 2. Shut down hosting on all workstations 3. Manually fixed 4. Edit hosting file If your issues did not fixed, Please try to contact quickbooks Support team and resolved your issues.