Error code 20005 - help please

Hi, I’ve listed my first 2 products on seller central. I received notification that my listing had been created and would be available to purchase within 15 minutes. The items are still lying in drafts referring to an error code 20005. It’s one of these 3 issues below which I have tried to fix but not having any luck with any of them. Is there something that I am perhaps missing?

1. You have not submitted a product data feed for this SKU.
2. Previous errors in your product data feeds prevented the addition of this SKU to the catalogue.
3. The SKU in your product image data feed is wrong.