Let's resolve this error so that your payroll update will be successful, nyaweh.

This error will usually occur when Intuit FCS Service is disabled. You can enable the QuickBooks Desktop File Copy Services (FCS) to get rid of the error. 

1. Press Windows + R key on your keyboard to open the Run window.
2. Inside the Run window’s search box type services.msc and click OK.
3. From the list of services find and double click Intuit QuickBooks FCS.
   
4. From the Intuit QuickBooks FCS Properties window, select the Manual option for the Startup type.
   
5. Click the OK button and open QuickBooks payroll.

After enabling FCS, re-validate the payroll's service key to refresh the connection.

Here's how:

1. Go to Employees at the top menu bar.
2. Choose My Payroll Service.
3. Then select Activate Service Key. 
4. Under the Service Keys window highlight the current payroll and select Edit.
5. Click on Next until finish comes up.

You'll also want to follow this article to complete the repair process:

• Repair your QuickBooks Desktop for Windows

To give you more references, you can check out and read these help articles.

Reach out to us if you need anything else. We're always here to help you. Have a great day!