If you're encountering Payroll Error PS038 in QuickBooks Desktop after a recent update, it typically means that a payroll data file is stuck in an online to send state. To resolve this, first, ensure that your QuickBooks Desktop is updated to the latest release. Next, verify your payroll subscription is active. Run the "Verify Data" utility to identify any data issues, then use the "Rebuild Data" tool to fix them. If the issue persists, try sending payroll data again. You can also attempt to delete and recreate the stuck paychecks. If none of these steps work, consider reaching out to QuickBooks support for further assistance.