Quote Originally Posted by roeghar View Post
breaks the admin and triggers the "WARNING: An Error occurred, please refresh the page and try again."
That usually indicates a SQL error, and its details are in your /logs/ folder on the server.
This FAQ (which I find by using the Search and pasting in the error message) speaks directly to that issue: http://www.zen-cart.com/content.php?...-and-try-again