Your Go-to Guide to Undo QuickBooks Error 6010 Operating QuickBooks is an easy task as the program comes in with a highly user-friendly interface. Despite using the most well-structured feature, QB encounters specific errors that may deplete the user experience. For example, QuickBooks Error 6010 is an issue that arises when the user tries to access the application right after installation or after a reinstallation. The error is also supported by a corresponding text saying, “An error occurred when QuickBooks tried to start the database.” Even after performing all of the tricks available on the internet, you are unable to delete the error, have a quick read below to give one last try.