Some products keep blank?

I have a strange problem.. Some items are blank? only the image and price is showing, and the product description is not showing.. also the charesteristic dropdown is not there?

With an other product only one dropdown is shown?

Can you see what is happening here? If i check the backend, everything is there!

For Example this item: www.wildwestern.nl/index.php?option=com_...4&category_pathway=0
And a screenshot of its productpage backend:


The other one, with only one dropdown is thisone:
www.wildwestern.nl/index.php?option=com_...4&category_pathway=0

It said: 'no value found' instead of the dropbox...

It's probably because the variants/characteristics data is out of sync. Please try to follow the instructions here to regenerate the variants/characteristics data:
www.hikashop.com/en/support/documentatio...html#characteristics

its a weird solution.. but it works.. thanks..