Hi there,

I had upgraded 2 sites with the latest version of zc 1.5.6 + PHP 7.3 and I see many errors. Most of errors are from the languages. There are many missing language in the new version. Error details:

tpl_checkout_success_default.php (missed define language)
Disable a category in admin (missed define langguage)
[20-Dec-2018 11:20:35 UTC] PHP Warning: Use of undefined constant MODULE_ORDER_TOTAL_GV_STATUS - assumed 'MODULE_ORDER_TOTAL_GV_STATUS' (this will throw an Error in a future version of PHP) in /home/roidseur/public_html/includes/templates/template_default/templates/tpl_site_map_default.php on line 64 (popular error when use with PHP 7.3)

I will update errors when I see a new. I am tracking on the sites.

Best Regards,