https://techcommunity.microsoft.com/t5/windows-11/what-to-do-when-stuck-in-quickbooks-error-code-6000-80-when/m-p/4145715

quickbooks error 6000 when opening a company file and can be caused by several factors, including insufficient file permissions, network issues, or corruption in the company file. This error disrupts access to financial data, hindering business operations. To resolve it, users should ensure proper file permissions, verify network settings, and use QuickBooks\' File Doctor tool to repair any file corruption. Seeking professional support may be necessary if these steps do not resolve the issue.. Make an appointment for a professional QB by calling 1-855-409-2300