QuickBooks Error PS036 usually happens when QuickBooks Desktop is updating payroll or verifying payroll subscriptions. An inactive payroll subscription, corrupted corporate files, or inaccurate service information could be the cause of the problem. Verifying the payroll subscription, updating QuickBooks, and fixing any data-related issues are all necessary to resolve the issue. Call 1.855.738.2784 if you need assistance with QuickBooks.