ShipScript has been an eBay Community volunteer since 2003, specializing in HTML, CSS, Scripts, Photos, Active Content, Technical Solutions, and online Seller Tools.
I suspect your template is missing the Format column or that the data in that column is wrong. The most commonly used data would be either FixedPrice or Auction .
If you are using Seller Hub, eBay has category-specific listing creation templates that include all of the required columns (and some extra columns).
https://www.ebay.com/sh/reports/uploads
