Just a guess here. But it sounds to me like you reported wages in COGS that you already reported as W-2 wages paid to an employee or 1099-MISC paid to a contractor. That's double-dipping and will cause the issue you are experiencing now. If you've already reported the wages to an employee on a W-2, then you do not enter them in COGS.
If you're already reported payments to a 1099-MISC contractor outside of COGS, then you do not report it again in COGS.
