QuickBooks Error 6190 happens when a company file cannot be accessed, usually because the transaction log and the company file are not compatible or because the file was opened in single-user mode on a different computer. Until this problem is fixed, users cannot access the file, which interferes with workflow. For expert phone support with QuickBooks, dial 1.855.738.2784. Website URL: https://roywill369.wixsite.com/quickbookshelpline/post/here-s-the-effective-way-to-resolve-quickbooks-error-6190 Country List: United States