I'm using a user that belongs to a Buyer account and went to the site using the Log In to Experience as User but I always get an error when trying to access product pages...the rest of the pages work fine but not these ones.

It's confusing reading the error "You can't access this account" on those pages...I've permission sets assigned to that user to allow access but can't figure it out how to navigate to a product.

Here's the error: