Business & farm

I am "Febuzled" for sure.  BOY Inventory = EOY Inventory so COGS is Purchases for the year.  It tells me EOY Inventory is negative so I don't know why.  I looked back at last year and I used Lower of Cost or Market (LCM) for inventory method and this year I selected Cost.  I corrected that and resubmitted.  Still same issue.  No personal use of inventory or other adjustments.  Exact error is below:

 

Data in the return is missing or invalid.  Please double check your entries.

We encountered an issue processing your e-filed return.  Review the reason for the reject related Schedule C, Profit or Loss From Business, Inventory at End of the Year.  The IRS does not allow this to be a negative amount.  Make the appropriate change(s) and re-submit this return electronically.  if the reject continues, you need to print and file this return via U.S. Mail.