Quote Originally Posted by magz View Post
Mystery solved thanks to RCwebdev. It was indeed an issue with TaxCloud code, so for anyone trying to use both TC 1.5.2 and EO 4.1 (with ZC 1.5.1), to fix the error change the following code in YOUR-SITE/includes/classes/order.php (on whatever line # your error log gives you).
Find:
require_once DIR_WS_MODULES . 'TaxCloud/func.taxcloud.php';
and try replacing it with:
require_once(DIR_FS_CATALOG . DIR_WS_MODULES . 'TaxCloud/func.taxcloud.php');
For me this solved the problem - no more server error 500 or error logs mentioned in my previous post, and now I can finally use Edit Orders 4.1!
Want to make sure it's clear.. this error has NOTHING to do with Edit Orders.. Edit Orders only helps to uncover an error created by Tax Cloud.. this would be an issue regardless as to whether or not you have Edit Orders installed.. It's purely a Tax Cloud issue..