Hi Peter,
this demonstrates that you entered the metainfo logging into the backend using the wrong domain
http://www.koffiematters.nl/administrator instead of :
http://koffiematters.nl/administrator
So you know this for the next time, and pay attention to not do wrong again.
For this time, my advice is to login again as
http://www.koffiematters.nl/administrator, export the CSV, change all links to
http://koffiematters.nl, import them back logging in with the correct domain
http://koffiematters.nl/administrator
About the SEF links, i should analyze better how you are using Hikashop. If your product links are using the Canonical Hikashop option (as recommended) i suggest to use the plugin data source for JSitemap. (attached here too)
If not, you have to choose the 'Manual menu item alias for SEF links' in the data source settings for Hikashop products corresponding to your menu item 'Product overzicht' ->
http://koffiematters.nl/koffiemachine-kopen/product-overzicht
grtz
John