Typically this type of error when uploading a feed has to do with missing a required field or using the incorrect format for a required field in the data feed. Check out this article for more details on feed formatting and requirements. If you can't get it sorted with that article, please reach out to our support team here and we'll be happy to continue to help!
If my reply helped you please mark it as the "Accepted Solution". Need help with an account specific VMP question? Reach out to the VMP team today!