I maybe wrong, but I think I remember seeing in document parser that when modx processes a redirect, it uses that &err parameter to check if the redirect had failed or not, but I might be totally wrong..
So how do you get this error? What’s the server details? Do you have any snippets running on that page? Does every page give you the error? Have you set site_start and unauthorized and error page ID’s to point to real document ID’s at modx system settings?
"He can have a lollipop any time he wants to. That's what it means to be a programmer."
