Hello one of the catalogs my clients are using are taking customers to a 404 page, because its using products that my client does not sell any more I tried creating a new product feed for him but the that did not solve a anything. When I try to remove the “out of stock products” from my clients catalog it says it deletes them but then they re appear. What should I do in this case because the client is getting a lot of traffic but to 404 pages