This error occurred because you have URLs (links to websites) in the product descriptions of one or more items (rows) of your feed file. You may not use Wish to direct shoppers to your own or another online selling venue to purchase the same items as listed in your Wish shop, as this may constitute fee avoidance. This includes posting links/URLs or providing information sufficient to locate the other online venue(s). Directing Wish buyers outside of Wish negates the supplier's partnership with Wish.
Troubleshoot this issue: Remove all URLs from your feed file. Double-check that there are no web addresses in the product descriptions.
This does not apply to image URLs in the columns designated for images of products.