cs-cart error: We were unable to find what you were looking

After uploading a product catalog, when the products were created, a fake link seems to be added to each product (the same for all) and therefore, when I go to the product detail, I get a "404 Page not found" Error... Why is this happening? How can I fix this?

    Oops!
We were unable to find what you were looking for.
The page you have requested cannot be found.
Error code: Page Not Found

Solution

guess that the catalog is loaded via import and smth goes wrong. here are some standard product misconfiguration leading to 404:

product has Disabled status;
product has no price;
product has no category;
product has categories but all of them have Disabled status;
product is not assigned to any storefront/vendor;
product is not premoderated for Multivendor;
product is imported with SEO name and it is duplicated in database;

of course, custom add-ons might cause issue too.

also you may use the following workaround:

take a particular product;
create it manually in CS-Cart with correct properties;
export it to CSV;
compare to what you have in CSV (or XML) and add;