QuickBooks Error PS038 occurs when trying to run payroll updates, usually due to pending paychecks in the "Online to Send" queue. This error prevents successful payroll processing. To resolve it, verify and send pending paychecks, update QuickBooks and payroll, and use the QuickBooks Tool Hub for diagnosing and fixing the issue. You can reach our QuickBooks Experts Team by giving them a call at 1.855.409.2300.