The Easy Guide to Fix QuickBooks Error 6210 For more than three decades, QuickBooks Desktop has been widespread among small and midsized enterprises in the accounting industry. QuickBooks Desktop makes the time-consuming task of managing regular financial activities a matter of seconds for its users. Without any doubt, QuickBooks Desktop is a great application; however, at the same time, we can’t ignore its vulnerability to errors and glitches. This post will discuss QuickBooks error 6210, which numerous users receive while opening their company files in QuickBooks Desktop. It shows up with an error message displaying “We’re Sorry. QuickBooks encountered a problem when opening the company file.” Several factors can cause QuickBooks error code 6210, which you will learn further, along with their troubleshooting fixes.