Hi
I've been struggling with updating my Zencart for about 3 weeks now. When I fix one thing another seems to break. Currently I am getting this in the logs after i go to the checkout page :

Undefined constant "MODULE_SHIPPING_ZIPSHIP_ZONE" in /home3/genesbea/public_html/includes/modules/shipping/zipship.php:77

Anybody got any ideas as to what is going on here please?

Thanks

PS My ZenCar version is currently : 1.5.8a