Quote Originally Posted by swguy View Post
Haven't seen this one before:

#1 checkout_one_observer->__construct() called at [/home/account/domains/mystore/public_html/includes/autoload_func.php:44]
#2 require(/home/account/domains/mystore/public_html/includes/autoload_func.php) called at [/home/account/domains/mystore/public_html/includes/application_top.php:222]
#3 require(/home/account/domains/mystore/public_html/includes/application_top.php) called at [/home/account/domains/mystore/public_html/index.php:25]
--> PHP Warning: Use of undefined constant WARNING_GUEST_NO_GCS - assumed 'WARNING_GUEST_NO_GCS' (this will throw an Error in a future version of PHP) in /home/account/domains/mystore/public_html/includes/classes/observers/class.checkout_one_observer.php on line 118.

Is the observer loaded before the language defs in extra_definitions are?
That was corrected in OPC v2.4.0.