Getting 404 Error

I updated the plugin via wordpress to 8.4 yesterday. Started importing products using the direct import method. When I try to view the products on my site I get a "404" page cannot be found error message for all of the products I imported. Noticed there was a new update available today for version 8.5. I updated but am still having the same problem Here is an example of one of the product links that the plugin created for one of the imported products:

I'm thinking that index.php in the links is the problem...I don't recall that being there before.