Do you have a multisite installation? I got this working by commenting out a few lines of codes where the plugin checks whether the woocommerce is installed. That check is not working on multisite.
Find a line from code:
if (in_array('woocommerce/woocommerce.php', apply_filters('active_plugins', get_option('active_plugins')))) {
And comment it out. That line can be found in 2 places:
vconnect-postnord-delivery-checkout/vc-aio-core.php
vconnect-postnord-delivery-checkout/core/vc-aio-core.php
I’ll create a support ticket about this.