Posted on 21/12/2018 09:59:07
Hi Anonymous
First I think you need to upgrade this solution. It seems old - you really should do your self the favor of upgrading. For security reasons, performance, support and so many other reasons :-).
All the JS errors indicates that you either have a broken installation or some old cached JS documents. Ensure you do not get 404s when loading the backend and also clear the browser cache.
That said, swtiching to the setting "Prices in database have VAT" = True can be a problem. If you sell in multiple countries or currencies, it migh be a unsolvable problem to have that set. See the recommendations here: https://doc.dynamicweb.com/documentation-9/ecommerce/payment-shipping/vat-taxes
BR Nicolai