Quote Originally Posted by lat9 View Post
Hmm, that constant is defined in /includes/languages/english/extra_definitions/lang.checkout_one_extra_definitions.php. Did you, perhaps, forget to copy that file when you installed?
In the above file, it appears that
Code:
'ERROR_GUEST_CHECKOUT_PAGE_DISALLOWED', 'Access to that page ............
should be

Code:
'ERROR_GUEST_CHECKOUT_PAGE_DISALLOWED' => 'Access to that page ............