i resolved it, by adjusting my continue link like this: in controllers/cart.php line 115
$categoryLink = '&view=categories&virtuemart_category_id=0&Itemid=118&'
For your site you have to find the itemid that is correct, first.
i have to put the "&" at the end, otherwise it wont call the item id.
but i have to give id values otherwise i dont no how to call the modules. this prolly not the right way to call the item variable, but hey, i dont know better.
same goes for goes for the view cart link:
on line 124 i did put: "&Itemid=118&" behind the route, so i get this: JRoute::_("index.php?option=com_virtuemart&view=cart&Itemid=118&")