Same here, 1.20 doesn't track e-commerce.

Please, check in VirtueMart, at the Order confirmation page, if the tracking code is present in the page source.
You should be able to find it just before end of the HTML code. You should see all the items inserted in the cart in a JavaScript block.

Hello, the product information for the order doesn't show up in the GA code on the confirmation page.

And do you have the tracking switched on in plugin configuration?

yes, E-Commerce Tracking is set to "yes"

Hello,
what is the site URL?