Shopify Facebook App error "another item with the same retailer id was already uploaded

I am having the same issue! I reached out to Facebook support, but have not heard back yet. All 84 of my new products were rejected due to this error, and I can not tag on instagram. I did recieve one email back from Shopify support and they thought that the error message “may have to do with the fact that you’ve had another product feed uploaded via the old de-listed Facebook Shop sales channel, or another source (such as uploading products yourself manually).” Unfortunately I do not know how to fix this. Hopefully someone will get back to me from FB and this will be solved soon!!