Duplicate without user-selected canonical

Hi,

Edit the settings of the "apple-original-accessories" category and enter the canonical URL for that category in its "canonical URL" setting.
That should solve the problem for all three:
shopName/accessories/apple-original-accessories/product/listing.html
shopName.com/accessories/apple-original-accessories.html
shopName.com/accessories/apple-original-accessories/product/listing/type-rss.feed?limitstart=120

For shopName.com/accessories/apple-original-accessories/839-.html it's likely a URL of the product with the id 839. So edit that product and make sure it has a canonical URL.

For shopName.com/shop/imac-pro/product/download/file_id-13933.html it's the URL of a downloadable file. Normally, if the product of that file has a canonical URL, then the file itself should only be indexed with that canonical URL as a base and thus it should avoid the issue. So you need to make sure your products with free downloadable files have a canonical URL, and then for file download URLs marked as problematic, you need to remove them from the google index. It will reindex them with the correct URL in the future.

Hi,

The ?limitstart=21 parameter indicates that this page has (or has least had in the past) several pages with 21 products displayed per page.
If that page with the parameter doesn't display any product anymore, it just means that you now have less than 21 products for the category of that page while you had more in the past (you probably just moved some of the products, or some are not available anymore).
So the fact that Google indexed it in the past is normal, and the fact that it doesn't display any products anymore is normal too.
I guess you just want to ask Google to remove it from the index.