QuickBooks Error Code 6143 usually appears when your company file is damaged or displaced from its proper folder location. This error can interrupt workflow, crash QuickBooks Desktop, or prevent opening critical financial data. Common causes include corrupted .ND or .TLG files, incomplete restoration, or improper folder permissions. You can repair the error by verifying the company file path, renaming configuration files, and using the QuickBooks Tool Hub. For advanced troubleshooting steps or to verify file integrity professionally, dial +1-866-408-0444 and get personalized guidance for resolving the QuickBooks 6143 error effectively.