I'll ensure that your company file is free from any potential data issues, seasidelauren.

Error 278 occurs when an employee was overpaid or the Payroll Taxes. Since your balance sheet and report were correct. We can perform some troubleshooting steps to fix it. Let's make sure that your QuickBooks software is updated to the latest release. Then, download the QuickBooks File Doctor to your computer. We can use the QuickBooks File Doctor to scan your company file and fix possible data issues.

Step 1: Download and install QuickBooks Tool Hub.

1. Open the file you downloaded (QuickBooksToolHub.exe).
2. Follow the on-screen steps to install and agree to the terms and conditions.
3. When the install finishes, double-click the icon on your Windows desktop to open the tool hub.

Step 2: Run Quick Fix my File.

1. From the tool hub, select Company File Issues.
2. Choose Quick Fix my File.
3. Click OK when it completes and launch your QuickBooks.

If you get an error message, move to Step 3.

Step 3: Run QuickBooks File Doctor.

1. From the tool hub, select Company File Issues.
2. Choose Run QuickBooks File Doctor. It can take up to one minute for the file doctor to open. Note: If the QuickBooks File Doctor doesn't open, search for QuickBooks Desktop File Doc and open it manually.
3. In QuickBooks File Doctor, select your company file from the drop-down menu. If you don’t see your file, click Browse and search to find your file.
4. Hit Check your file (middle option only) and then Continue.
5. Enter your QuickBooks admin password and then select Next.

Once done, you can run the Verify and Rebuild data again to check your file if it's already free of any error. Also, it's common to run rebuild multiple times as long as the error message is changing. There are times that data issues can be fixed one at a time after the others have been resolved.

For your reference, you can see the steps through this guide: Fix company file and network issues with QuickBooks File Doctor.

In case you want to correct year-to-date(YTD), you can review this resource: Adjust payroll liabilities in QuickBooks Desktop. This includes helpful tips and processes to correct your liabilities.

Let me know if you have any QuickBooks-related concerns. I'm here to help you.