after updating Joomla to latest version 3.7.3 we had a problem with multilinguality in VirtueMart 3.2.3 , the store didn't show anymore products in different languages even if the website language is different from the default one.
For example in my website the default language is French, if the user switch the website to English then the products will still be in French although they have English translation
https://exorient.ch/index.php?lang=en
First - you have a 404 error.
Second - you can look at this topic: http://forum.virtuemart.net/index.php?topic=137929.0