According to Intuit, Error Code -6108, -105: “The QuickBooks company file cannot be opened. Verify the users have Windows permissions.” is an error that can occur for one of several reasons:
- more than 1 computer has hosting turned on (when only 1 computer should)
- you’re not running the latest release for your version of QuickBooks
- the QuickBooks Database Manager Service was prematurely stopped
- in QuickBooks 2006, if the company file (.qbw) was never opened on the server hosting that file
Intuit offers a troubleshooting guide to address this issue that’s linked below. This guide will discuss checking the Hosting setting on the server and each workstation. One cause of this error is that multiple workstations are configured to host the company file (incorrect) instead of all workstations having a Hosting setting of off and a server configured with a Hosting setting of local files only or local and remote files (correct). You can confirm the Hosting setting by pressing F2 while QuickBooks is running. Doing so will display the Product Information window. The Hosting setting appears in the lower left corner.
To follow the troubleshooting steps to resolve Error Code -6108, -105, consult this Intuit knowledge base article.