I solved the problem;
I found this on virtuemart forum.
Look at your database table with phpMyAdmin and search for the tables with a language suffix at the end. I suppose you orginally installed VM2 in english. Therefore you should find the following tables:
m0atm_virtuemart_categories_en_gb
m0atm_virtuemart_manufacturercategories_en_gb
m0atm_virtuemart_manufacturers_en_gb
m0atm_virtuemart_paymentmethods_en_gb
m0atm_virtuemart_products_en_gb
m0atm_virtuemart_shipmentmethods_en_gb
m0atm_virtuemart_vendors_en_gb
If one or more of these tables is missing with the nl_nl suffix at the end, export the english table, rename the exported file suffix to nl_nl and import it again. When you are done, you should also have the nl_nl table versions in your database.
m0atm_virtuemart_categories_nl_nl
m0atm_virtuemart_manufacturercategories_nl_nl
m0atm_virtuemart_manufacturers_nl_nl
m0atm_virtuemart_paymentmethods_nl_nl
m0atm_virtuemart_products_nl_nl
m0atm_virtuemart_shipmentmethods_nl_nl
m0atm_virtuemart_vendors_nl_nl
dziudek wrote:The problems seems to be related to the multilanguage support in VM - I've checked it on my localhost and for english there is no error. I see that you are using nl_nl language so probably there is some bug in the VM - I recommend to ask the developers because the problem isn't related with the template and the quickstart package but with the VirtueMart component.